Isaac and I. Minis Hays papers

Mss.B.H334

Date: Circa 1820-1925 | Size: 1.75 Linear feet, Ca. 1000 items
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Abstract

These papers reflect Isaac Hays' interests and activities in the medical profession and as an editor. His interest in paleontology, especially in the controversy with G. W. Featherstonhaugh, is also represented. There is one separate volume (77 letters) containing correspondence about natural history and naturalists, written to Hays by C. L. Bonaparte, George Ord, Thomas Say, and Charles A. Lesueur. The correspondence in the larger collection, however, contains much material on the American Journal of the Medical Sciences, particularly illuminated in the correspondence with John D. Godman. The I. Minis Hays material consists of letters from doctors, relating to medicine and medical publications and editing, as well as medical organizations. Most significant of the correspondence is that with John Shaw Billings (ca. 60 letters).

Background note

Isaac Hays (1796-1879, APS 1863) was an ophthamologist and medical publications editor. He was a surgeon at Will's Ophthalmic Hospital in Philadelphia (1834-1854) and was one of the first to study colorblindness and astigmatism.

Isaac Minis Hays (1847-1925, APS 1886 ) was a Philadelphia physician, ophthalmologist, editor and librarian. He was the editor of the American Journal of the Medical Sciences from 1878-1890. He later became Secretary and Librarian of the American Philosophical Society from 1897-1922. As A.P.S. Librarian, he collected and cataloged the great mass of Benjamin Franklin's papers for the American Philosophical Society. He also published a Calendar of Franklin Papers (1907) and a C[h]ronology of Benjamin Franklin (2nd ed., 1913).

Hays was born in Philadelphia on July 26, 1847, the son of Dr. Isaac Hays (1796-1879, APS 1863) and Sarah Minis. He was sent to the Classical Institute for his secondary education, and afterward matriculated at the University of Pennsylvania. He graduated A.B. in 1866 and immediately entered Penn's medical school, graduating M.D. in 1868. Remaining an extra year, he took a Master of Arts degree in 1869. Also, in 1869 he became the assistant editor to his father Isaac Hays, who was the editor of the American Journal of Medical Sciences.

Hays wrote or edited several works in his field of ophthalmology, including the American edition of J. Soelberg Wells's Treatise on the Diseases of the Eye (1873) and a statistical survey, entitled "Blindness: Its Frequency, Causes and Prevention" for William F. Norris and Charles A. Oliver's System of Diseases of the Eye (1897). However, Hays took little pleasure in the practice of medicine (having few patients) or in medical research.

Hays succeeded his father as editor of the American Journal of Medical Sciences, after his father's death in 1878. Already as assistant editor, he had commissioned four historical articles to demonstrate American contributions over the previous century to Medicine, Surgery, Obstetrics and Gynecology. These appeared in successive quarterly issues of the Journal in 1876, and were reprinted as a monograph entitled, A Century of American Medicine. Several years after becoming editor, Hays converted a sister publication of the Journal, the monthly Medical News and Library, to a weekly format. He conceived the publication, containing extracts from other journals, as a "medium" for "transmitting the earliest intelligence of medical discoveries and progress," and recruited special correspondents in other cities for this purpose. These endeavors gave Hays a notable reputation as a medical editor.

Hays's earliest experiences with libraries came after his election as a Fellow of the College of Physicians of Philadelphia in 1872. The following year he was appointed to the Library Committee of the College, and pursued its work with creativity and energy. One of his greatest concerns was to see that the College library was properly cataloged, and he visited the Library Company of Philadelphia and the Boston Medical Library to learn about the costs, materials and systems for cataloging the collection. He even concerned himself with the particulars of the library's operations, designing charge slips, helping to draft rules for the use of the library, drafting a new, expanded schedule for its hours of operation, binding library and archival materials and hiring its first professional staff. As the College Librarian became more experienced in his post, the need for the Library Committee to be involved in the day-to-day operations lessened. Hays was displeased by this "restriction" in the Committee's authority, and offered his resignation in 1893.

Hays' earlier editorial and library committee assignments would be excellent preparation for his work at the American Philosophical Society. He was elected to membership in the Society in February of 1886, and eleven years later became one of its secretaries. He was also appointed acting librarian to replace of Dr. George H. Horn (1840-1897, APS 1869), who had fallen ill. Within a few weeks of his new appointments he began initiatives for changes that would occupy the Society for a quarter of a century. Serving as the A.P.S. Librarian, secretary and editor, Hays was effectively its first executive officer. During the twenty-five year period from 1897-1922 he is said to have written 48,000 letters on Society business and edited twenty-seven volumes of the Proceedings and Transactions. With a passion for order, a keen analytical sense, and abundant physical energy, he became the driving force behind all of the Society's work.

Drawing upon his experiences on the Library Committee of the College of Physicians, Hays brought needed changes to the Society's Library. On his appointment as Acting Librarian, he was invited to sit on the Library Committee and began making important recommendations. Later, after the death of the former Librarian Dr. Horn in 1898, Hays became an ex offico member of the Library Committee. Among his first recommendations were the establishment of rules governing the operation of the Library, the purchase of a card catalog, and the hiring of a professional cataloger. Other library staff was added over the next few years, totaling four by 1901. For a library cataloging system Hays adopted the Dewey Decimal Classification system to replace the "philosophical" classification of former A.P.S. Librarian J. Peter Lesley (1819-1903, APS 1856). Next, he turned to the Library's neglected books and periodicals that were badly in need of binding. He identified and sold duplicate volumes and withdrew books outside the Library's fields of interest, donating many pamphlets on Unitarian theology (garnered by the Society's first Librarian John Vaughan (1756-1841, APS 1784)) to the First Unitarian Church. Hays extended the hours during which the Library was open to readers, and also asked for increased space. One of his most impressive accomplishments was a fifteen-year project to bind and catalog the papers of Benjamin Franklin. Having proceeded with the organization of the Library, Hays now turned to the A.P.S. Committee on Historical Manuscripts for advice about how to make the Society's many large collections accessible to researchers. On the Committee's recommendation calendars were prepared for the papers of Richard Henry Lee, Nathanael Greene and General George Weedon. Hays is best known outside the Society for promoting the Benjamin Franklin papers, donated to the Society by Charles Pemberton Fox in 1840. This collection was little known or used for much of the nineteenth-century, although Paul L. Ford used it extensively for his 1899 portrait, The Many-Sided Franklin. Shortly after Hays' appointment as Librarian, A.P.S. member Talcott Williams (1849-1928, APS 1888) suggested to him that a calendar be prepared for the Franklin papers. Hays presented the idea of a Franklin Collection calendar to the A.P.S. Council along with a proposal that the Society celebrate the bicentennial of Franklin's birth in 1906. Neither proposal was adopted. Consequently, he changed his tactics. In the final paper of a scientific session at the General Meeting that year, the Chairman of the Library Committee Joseph G. Rosengarten ( 1835-1921, APS 1891) described the content and character of the Franklin papers, expressing the hope that a calendar might be prepared for the collection in the not too distant future—"certainly by the two hundredth anniversary of the birth of our founder." In the business meeting that followed Hays gained unanimous consent for a committee "to prepare a plan for the appropriate celebration of the bicentennial of the birth of Franklin."

The plans for a bicentennial celebration of Franklin's birth drew widespread support, from the U.S. government, the Pennsylvania legislature, and the city of Philadelphia. On April 20, 1906 dignitaries from across the nation and the globe assembled in Philadelphia to celebrate the bicentennial. These included Senator Henry Cabot Lodge, leading the congressional delegation; Ambassador Jean A.A. J. Jusserand (1855-1932, APS 1907), representing the French Republic; as well as delegates from 127 learned societies. In addition to addresses on Franklin by leading scholars, there were luncheons, dinners and two academic convocations. There were also memorial ceremonies at Franklin's grave. The grateful members of the Society recognized Hays achievement with an illuminated scroll and an engraved silver cup. After the departure of guests, the Committee on the Franklin Bicentennial directed Hays to prepare a memorial volume and "to secure the services of a corps of assistants to complete the Calendar of the Franklin papers." The calendar appeared in five large volumes in 1908.

As A.P.S. Secretary Hays resuscitated the spirit of the Society just as he had revived its Library. By the last decade of the nineteenth century, attendance at the Society's semi-monthly meetings was meager. The number of attendees rarely reached thirty. In 1901 Hays proposed that the Society hold an annual general meeting, lasting several days to attract distant members instead of the semi-monthly meetings. His plan was approved, and the first general meeting was held on April 3-5, 1902 and was a resounding success. 115 members attended, and such meetings became a regular feature of the Society's calendar. Sometimes the general meetings were planned around an anniversary or special theme like the centennial of Darwin's birth. In 1910 ordinary meetings were reduced to one a month, and in 1936 monthly meetings were dropped completely in favor of a second general meeting.

Hays' other major initiative within the American Philosophical Society was less successful. The reawakening of the members' interest in the Society and its mission naturally produced a desire for larger quarters. This was especially the case, since member attendance at general meetings had grown significantly and the library had outstripped the available space. As a matter of fact, in 1912 some books from the Library's collection had to be put into storage at a neighboring bank. At this time in Philadelphia the new Parkway was taking shape under the leadership of former Fairmount Park Commissioner Eli Kirk Price, Jr. (1860-1933, APS 1916), who based the plans upon the model of the Champs ď Elysees in Paris. Hays was among the Society's members, who voted to leave the Philosophical Hall facility on Independence Square and to construct a new building at 16th and Cherry streets. To this end he mounted a fund-raising campaign, playing a large part in the related meetings, discussions and publicity. However, the advent of World War I diverted the attention of the members and the public for a number of years. In 1922 before the relocation scheme could be realized, the city of Philadelphia decided to use the 16th and Cherry Street tract for a park.

In the spring of 1922 Hays shocked the members of the American Philosophical Society with an announcement of his retirement. The members were genuinely dismayed, since few active members could recall a time when he had not been in charge. After his resignation, Hays continued to be an active and outspoken A.P.S. member. Among his activities, he was appointed Chairman of the Committee on Library, and in this capacity he wrote an article on Benjamin Franklin's Canada pamphlet entitled, The Interest of Great Britain Considered (1760), as well as answering questions from a new generation of Franklin scholars such as George Simpson Eddy. In 1924 Hays served as secretary of a special committee to plan an international scientific conference to celebrate the Society's two hundredth anniversary in 1926. He presented his plan for the celebration on May 27, 1925. Unfortunately, he would not live to see it realized. Ten days later, the seventy-seven year old Hays died of a heart attack on June 5, during a heat wave of unseasonable intensity. In his will Hays directed that after the death of his daughters, the income of his considerable estate should be paid to the American Philosophical Society, the institution he had served for thirty-seven years.

Collection Information

Physical description

Ca. 1250 items.

Provenance

Custodial history:

I. Minis Hays material (call number Mss.B.H334.1) originally part of Isaac Hays collection purchase. I. Minis Hays material interfiled with Mss.B.H334 in 2011.

Alternate formats available

Part of this collection is also available on microfilm (Film 1363).

Related material

Biographical tributes to Caspar Wistar, 1918 - Mss.B.W76a

A note on the history of the Jefferson manuscript draught of the Declaration of Independence in the Library of the American Philosophical Society, 1898 - Mss.973.3.H33n

Testimonial to Isaac M. Hays, 1906 - Mss.B.H335a

Early American History Note

Isaac Hays was a Philadelphia ophthalmologist who was also deeply involved in natural history. The Isaac Hays material has two discreet sections: a volume of correspondence for 1824-1855 and a collection of loose manuscripts. The first part of the collection is a bound volume that contains the correspondence Hays carried on with other prominent naturalists in the nineteenth century from 1824–1855, although the bulk come from the 1820s and early 1830s. Prominent correspondents in this series include Charles Lucien Bonaparte, George Ord, Thomas Say, and Charles Lesueur. All of the correspondence is incoming, addressed to Hays. Occasionally the correspondence involves commentary on other current events in addition to the obvious scientific nature of the correspondence. A letter from Bonaparte, for instance, discusses the rivalry between the Philadelphia and New York orchestras. The Ord correspondence, written mostly from Europe, makes reference to Audubon, Ord's ornithological rival, and scientific publications and thought prominent in Europe. The Say correspondence, written from New Harmony, also provides insight on that utopian experiment and his relationship with Lesueur, who also settled in New Harmony. There are only a few Lesueur letters, all of which are in French and written from New Harmony.

The second part of the collection is loose correspondence, which takes up two boxes, and contains exchanges from a wide array of individuals. The correspondence is a mix of notes of acknowledgements and science related exchanges. Many of the letters discuss recent publications and exchange information related to printed publications. A series of letters on the George William Featherstonehaugh controversy are of particular note. Featherstonehaugh was a U.S. geologist who, according to these letters, gave a lecture in Philadelphia in August 1831. Franklin Peale, Alexander Dallas Bache, Reuben Haines, Henry Carey, and Isaac Lea were in attendance and were shocked to hear Featherstonehaugh claim that fossil remains of a mastodon did not represent a new species, but were instead bones of a young species already discovered. Later, Isaac Hays wrote a letter to Featherstonehaugh accusing him of attacking his Hays' "private character." The ensuing debate is contained in this collection.

Indexing Terms


Genre(s)

  • General Correspondence
  • Scientific Data

Occupation(s)

  • Naturalists.
  • Physicians -- United States.

Personal Name(s)

  • Bache, Franklin, 1792-1864
  • Barton, Thomas Pennant, 1803-1869
  • Beck, John B. (John Brodhead), 1794-1851
  • Bigelow, Jacob, 1786-1879
  • Billings, John S. (John Shaw), 1838-1913
  • Bonaparte, Charles Lucian, 1803-1857
  • Bowditch, Henry I. (Henry Ingersoll), 1808-1892
  • Breck, Samuel, 1771-1862
  • Brigham, Amariah, 1798-1849
  • Brongniart, Alexandre, 1770-1847
  • Cabell, J. L. (James Lawrence), 1813-1889
  • Caldwell, Charles, 1772-1853
  • Coxe, John Redman, 1773-1864
  • Crittenden, John J. (John Jordan), 1787-1863
  • Dewees, William, 1768-1841
  • Drake, Daniel, 1785-1852
  • Draper, John William, 1811-1882
  • Featherstonhaugh, George William, 1780-1866
  • Fisher, John D. (John Dix), 1797-1850
  • Flint, Austin
  • Furness, Horace Howard, 1833-1912
  • Furness, Horace Howard, 1833-1912
  • Godman, John D. (John Davidson), 1794-1830
  • Gross, Samuel D. (Samuel David), 1805-1884
  • Hays, I. Minis (Isaac Minis), 1847-1925
  • Hays, Isaac,1796-1879.
  • Hayward, George, 1791-1863
  • Henry, Joseph, 1797-1878
  • Holmes, Oliver Wendell, 1809-1894
  • Jackson, James, 1796-1870
  • Jacobi, A. (Abraham), 1830-1919
  • Jusserand, J. J. (Jean Jules), 1855-1932
  • Keating, William Hypolitus, 1799-1840
  • Lea, Henry Charles, 1825-1909
  • Lesueur, Charles Alexandre, 1778-1846
  • Lewell, Thomas
  • Longmore, Robert
  • Marsh, George Perkins, 1801-1882
  • Meddlemore, Richard
  • Nuttall, Thomas, 1786-1859
  • Ord, George, 1781-1866
  • Reed, William B. (William Bradford), 1806-1876
  • Say, Thomas, 1787-1834
  • Sewall, Thomas
  • Smith, N. R. (Nathan Ryno), 1797-1877
  • Stillé, Alfred, 1813-1900
  • Warren, John Collins, 1778-1856
  • Welch, William Henry, 1850-1934

Subject(s)

  • Medical publishing -- United States -- 19th century.
  • Medical publishing -- United States.
  • Medicine -- Societies, etc.
  • Medicine -- United States -- 19th century.
  • Medicine -- United States.
  • Natural history
  • Natural history.
  • Paleontology.
  • Science and technology
  • Social Life and Custom


Detailed Inventory

 Papers
  1.75 lin._feet 4 upright boxes, 1 volume
Mss.B.H334 Table of Contents
1967 

Provenance: 525ms

Mss.B.H334.1 Abram from I. Minis Hays
1914 Mar. 8 

Provenance: 1967 525ms

Mss.B.H334.1 Ackinson, Ralph to I. Minis Hays
1885 Feb. 18 

Provenance: 1967 525ms

Mss.B.H334.1 Adami, J. George to I. Minis Hays
1899 Jul. 24 

Provenance: 1967 562ms

Mss.B.H334.1 Allen, Andrew H. to I. Minis Hays
1898 Jul. 27 

Provenance: 1967 562ms

Mss.B.H334 Althaus, J. to Isaac Hays
1878 Feb. 20 

Provenance: 1967 525ms

Mss.B.H334 American Academy of Arts and Sciences to Isaac Hays
1856 Dec. 9 

Provenance: 1967 525ms

Mss.B.H334 American Opthalomological Society to Isaac Hays
1864 Oct. 4 

Provenance: 1967 525ms

Mss.B.H334.1 American Philosophical Society to I. Minis Hays
1906 Apr. 20 

Invitation to the Franklin Bi-Centenary.

Provenance: 1967 562ms

Mss.B.H334.1 American Philosophical Society Proceedings
undated 

Provenance: 1967 525ms

Mss.B.H334 Amussat, A. to Isaac Hays
1868 Oct. 10 

Provenance: 1967 525ms

Mss.B.H334.1 Anderson, Mrs. from I. Minis Hays
1913 Mar. 13 

Provenance: 1967 562ms

Mss.B.H334 Bache, Franklin to Isaac Hays
1844 Nov. 30 

Provenance: 1967 525ms

Mss.B.H334.1 Barnes, William to I. Minis Hays
1876 Dec. 12 

Provenance: 1967 562ms

Mss.B.H334 Bartlett, Elisha to Isaac Hays
1838 Feb. 27 

Provenance: 1967 940ms

Mss.B.H334 Barton, Thomas Pennant to Isaac Hays
undated 

March 18.

Provenance: 1967 525ms

Mss.B.H334 Bean, William B. to Whitfield Jenks Bell, Jr.
1975 Dec. 3 
Mss.B.H334 Beck, John B. to Isaac Hays
1843-1848 

4 items: 1843 Oct. 11, 1843 Oct. 24, 1843 Oct. 30, 1848 Apr. 29

Provenance: 1967 525ms (1843 Oct. 11, 1848 Apr. 29); 1967 940ms (1843 Oct. 24, 30)

Mss.B.H334 Beck, Theodore Romeyn to Isaac Hays
1843-1844 

3 items: 1843 Oct. 27, 1844 May 28, 1844 Oct. 21

Provenance: 1967 562ms (1843 Oct. 27), 1967 525ms (1844 May 28), 1967 940ms (1844 Oct. 21)

Mss.B.H334 Bedford, G. S. to Isaac Hays
1847-1848 

3 items: 1847 Dec. 14, 1848 Feb. 4, 1848 Mar. 8

Provenance: 1967 525ms, 562ms (1847)

Mss.B.H334.1 Bertin, G. to I. Minis Hays
1891-1892 

7 items: 1891 Jan. 14, Feb. 3, 16, 17, Mar. 23, Nov. 19, 1892 Dec. 30

Provenance: 1967 562ms

Mss.B.H334 Biddle, M. L. to Isaac Hays
1860 Oct. 6 

Provenance: 1967 562ms

Mss.B.H334 Biddle, Thomas to Isaac Hays
undated 

Provenance: 1967 525ms

Mss.B.H334 Bigelow, Jacob to Isaac Hays
1835-1848 

1835 Jul. 31, 1838 Sep. 9, 1839 Apr. 9, 1847 Apr. 25, 1848 Feb. 22

Provenance: 1967 940ms (1835, 1838, 1847), 1967 525ms (1839, 1848)

Mss.B.H334 Bigsby, Dr. to Isaac Hays
undated 

Provenance: 1967 525ms

Mss.B.H334.1 Bigstrom, John to I. Minis Hays
1903 Nov. 24 

Provenance: 1967 562ms

Mss.B.H334.1 Billings, John Shaw
1879-1884 

11 items: 1879 Nov. 18, 1884 May 22, 1884 Nov. 22, 1884 Dec. 8, 1884 Dec. 12, 1884 Dec. 16, 1884 Dec. 19, 1884 Dec. 20, 1884 Dec. 27, 1884 Dec. 30 (2)

Provenance: 1967 562ms

Mss.B.H334,334.1 Billings, John Shaw
1885 

46 items: 1885 Jan. 7, 1885 Jan. 10, 1885 Jan. 31, 1885 Feb. 9, 1885 Feb. 12, 1885 Feb. 19, 1885 Feb. 27 (2), 1885 Feb. 28, 1885 Mar. 14, 1885 Mar. 15, 1885 May 4 (2), 1885 May 8 (+ copy), 1885 May 10, 1885 May 11 (2), 1885 May 16, 1885 May 29 (3), 1885 Jun. 1 (2), 1885 Jun. 2 (2), 1885 Jun. 12, 1885 Jun. 28 (6), 1885 Jun. 30, 1885 Jul. 3 (+ copy), 1885 Jul. 5, 1885 Jul. 9, 1885 Jul. 12, 1885 Jul. 26, 1885 Aug. 3, 1885 Aug. 4, 1885 Aug. 4 (5 PM), 1885 Aug. 5, 1885 Aug. 6, 1885 Aug. 8 1885 May 8, 10 originally filed with Shoemaker letters.

Provenance: 1967 562ms

Mss.B.H334.1 Billings, John Shaw
1886-undated 

3 items: 1886 Mar. 31, 1906 Feb. 23, undated

Provenance: 1967 562ms

Mss.B.H334 Blackman, George C. to Isaac Hays
undated 

May 27.

Provenance: 1967 525ms

Mss.B.H334.1 Blair, Anna L. to I. Minis Hays
1898 Nov. 2 

Provenance: 1967 562ms

Mss.B.H334 Blake, James to Isaac Hays
undated 

Nov. 20.

Provenance: 1967 525ms

Mss.B.H334 Boardman, Henry A. to Isaac Hays
undated 

May 7.

Provenance: 1967 525ms

Mss.B.H334 Boott, Francis to Isaac Hays
1840 May 15 

Provenance: 1967 562ms

Mss.B.H334b Bonaparte, Charles Lucian to Isaac Hays
1824-undated 1 volume(s) Bound volume. reel 1363:
volume 1

Bound volume also containing correspondence from George Ord, Thomas Say, and C. A. Lesueur.

Provenance: 1967 256g

Mss.B.H334 Bonaparte, Charles Lucian to N. A. Vigors
1826 Dec. 19 

On same sheet as Vigors to G. B. Sowerby, 1826 Dec. 8

Provenance: 1967 525ms

Mss.B.H334 Bourneville, Dr. to Isaac Hays
1872 Apr. 3 

Provenance: 1967 525ms

Other Descriptive Information: See: table of contents to 509.L56.45 (Scientists Collection)

 Bowditch, Henry Ingersoll to Isaac Hays
1843-1847 

1843 Oct. 1, 1847 Oct. 21

Provenance: 1967 940ms (1843), 1967 525ms (1847)

Mss.B.H334 Bradford, Mr. to Emma Bradford Hays
1878-undated 

Many letters are undated, various others from 1878. Also included is 1855 Jun. 3, "Father" to "My Dear Annie."

Provenance: 1967 525ms

Mss.B.H334 Bradford, Mrs. to Emma Bradford Hays
undated 

June 16.

Provenance: 1967 525ms

Mss.B.H334 Bradford, Annie
1857-undated 

2 items: 1857 Oct. 7 from Anne, undated from Katie.

Provenance: 1967 525ms

Mss.B.H334 Bradford, G. S. to Isaac Hays
1848 Apr. 19 

Provenance: 1967 525ms

Mss.B.H334 Breck, Samuel to Isaac Hays
1848 Oct. 26 

Provenance: 1967 525ms

Mss.B.H334 Bralihford, Thomas W. to Isaac Hays
1850 Jun. 29 

Provenance: 1967 525ms

Mss.B.H334 Brewerton, H. to Isaac Hays
1863 Nov. 10 

Provenance: 1967 525ms

Mss.B.H334 Brigham, A. to Isaac Hays
1835 Dec. 28 

Provenance: 1967 525ms

Mss.B.H334 Brigham, Amariah to Isaac Hays
1837-1838 

5 items: 1837 Feb. 28, 1837 Sep. 21, 1838 Jun. 22, 1838 Aug. 11, 1838 Sep. 11

Provenance: 1967 940ms

Mss.B.H334 Brongniart, Alexandre to Isaac Hays
1823 Oct. 23 

Provenance: 1967 940ms

Mss.B.H334 Broussais to Isaac Hays
1827 Jul. 4 

Provenance: 1967 525ms

Mss.B.H334 Bulletin Universal des Sciences to Isaac Hays
1829 Apr. 14 

Provenance: 1967 525ms

Mss.B.H334 Cabell, J. L. to Isaac Hays
1841 Jul. 4 

Provenance: 1967 525ms

Mss.B.H334 Caldwell, Charles
1833 Aug. 29 

Provenance: 1967 940ms

Mss.B.H334.1 Calling cards
undated 

10 items.

Provenance: 1967 525ms

Mss.B.H334 Carey, Samuel T. to Isaac Hays
1833 Oct. 28 

Provenance: 1967 940ms

Mss.B.H334 Carey & Lea. Advertisement
undated 

Provenance: 1967 525ms

Mss.B.H334 Carr, Benjamin to Isaac Hays
1828 

3 items: July 5, Monday evening, Friday night.

Provenance: 1967 525ms

Mss.B.H334 Chapman, Nathaniel to Isaac Hays
undated 

Provenance: 1967 525ms

Mss.B.H334 Charlton, Robert M. to Isaac Hays
undated 

Tuesday.

Provenance: 1967 525ms

Mss.B.H334 Churchill, Fleetwood, 1808-1878.
Letters to Isaac Hays
1842-1852 

4 items: 1842 Dec. 6; 1850 Feb. 26; 1852 Aug. 25; 1852 Dec. 25.

Provenance: 1967 940ms (1842); 1967 562ms (1850); 1967 525ms (1852 Aug. 25); 1995 - 1240ms (1852 Dec. 25)

Mss.B.H334 Civiale to Isaac Hays
1839-1848 

2 items: 1839 Dec. 26, 1848 Jan. 16

Provenance: 1967 525ms

Mss.B.H334 Clark, A. to Isaac Hays
1874 Mar. 9 

Provenance: 1967 525ms

Mss.B.H334 Clark, W. to Isaac Hays
1835 Jul. 7 

Provenance: 1967 525ms

Mss.B.H334 Clarke, Edward H. to Isaac Hays
1857 Jun. 29 

Provenance: 1967 562ms

 Coates, Reynell, 1802-1886.
Letter to Isaac Hays
1837 August 25 

Provenance: 1995 - 1240ms

Mss.B.H334.1 Cohen, Mindes to I. Minis Hays
1899 Oct. 14 

Provenance: 1967 562ms

Mss.B.H334.1 College of Physicians and Surgeons of Philadelphia to I. Minis Hays
1903 Mar. 6 

Provenance: 1967 525ms

Mss.B.H334 Collins, R. to Isaac Hays
1839 Jul. 11 

Provenance: 1967 940ms

Mss.B.H334 Collins, Z. to Isaac Hays
1824-undated 

3 items: 1824 May 21, 1831 May 25, undated Oct. 24

Provenance: 1967 525ms

Mss.B.H334.1 Colonial Society of Massachusetts to I. Minis Hays
1910-undated 

6 items: 3 invitations, 2 replies, 1 envelope.

Mss.B.H334 Combe, George to Isaac Hays
1839 Feb. 12 

Provenance: 1967 525ms

Mss.B.H334 Cotton, R. P. to Isaac Hays
1849 Jul. 16 

Provenance: 1967 525ms

Mss.B.H334 Coxe, J. R. to Isaac Hays
1834 Sep. 

Provenance: 1967 525ms

Mss.B.H334 Crittenden, J. J. to Isaac Hays
1851-1852 

2 items: 1851 Oct. 24, 1852 Jun. 10

Provenance: 1967 525ms

Mss.B.H334 Cuvier, Georges Leopold Chretien Frederic Dagobert, baron to Isaac Hays
1826 Jan. 9 

Provenance: 1967 940ms

Mss.B.H334 Cuyler, John M. to Isaac Hays
undated 

September 18.

Provenance: 1967 562ms

Mss.B.H334 Darlington, William to Isaac Hays
1854 Dec. 22 

Provenance: 1967 525ms

Mss.B.H334 Davis, N. S. to Isaac Hays
1850 Mar. 15 

Provenance: 1967 525ms

Mss.B.H334 Deabatte, G. to Isaac Hays
1824 May 25 

Provenance: 1967 525ms

Mss.B.H334.1 Delarze(?) to I. Minis Hays
1885 Aug. 3 

Provenance: 1967 562ms

Mss.B.H334.1 Denisend(?), George B.
1907 Feb. 11 

Provenance: 1967 562ms

Mss.B.H334 De Saussure, Henry W. to Isaac Hays
1851 Apr. 17 

Provenance: 1967 525ms

Mss.B.H334 Detwold, William to Isaac Hays
1849 Nov. 14 

Provenance: 1967 562ms

Mss.B.H334 Devinny(?), F. P. to Isaac Hays
1846 Mar. 20 

Provenance: 1967 562ms

Mss.B.H334 Dewees, William P. to Isaac Hays
1839 Dec. 23 

Provenance: 1967 940ms

 Dickinson
  

Unlocated June 2011. Possibly refers to Dixon or Dickinson.

Mss.B.H334.1 Dickson to I. Minis Hays
undated 

January 21. Reply from Hays on the back.

Provenance: 1967 562ms

Mss.B.H334 Dillwyn, L. W. to Isaac Hays
1824 Feb. 7 

Provenance: 1967 940ms

Mss.B.H334.1 Dixon, Samuel G. to I. Minis Hays
1901 Nov. 29 

Provenance: 1967 525ms

Mss.B.H334 Doane, G. W. to Isaac Hays
1847 Mar. 1 

Provenance: 1967 525ms

Mss.B.H334 Drake, C. to Isaac Hays
1831 Feb. 12 

Provenance: 1967 940ms

Mss.B.H334 Drake, Daniel to Isaac Hays
1827-1828 

5 items: 1827 May 22, 1827 Jun. 22, 1827 Nov. 21, 1828 Feb. 13, 1828 Apr. 26

Provenance: 1967 525ms (1828 Feb. 13), 1967 940ms (1827s, 1828 Apr. 26)

Mss.B.H334 Draper, Charles M. to Isaac Hays
1838 May 4 

Provenance: 1967 525ms

Mss.B.H334 Draper, John William to Isaac Hays
1837-1851 

3 items: 1837 Jul. 22, 1851 Nov. 5, 1851 Nov. 22.

Provenance: 1967 525 (1851 Nov. 3), 1967 562ms (1851 Nov. 22), 1967 940ms (1837)

Mss.B.H334 Du Bois, A. to Isaac Hays
1848 Oct. 28 

Provenance: 1967 525ms

Mss.B.H334.1 Eames, Wilberforce to I. Minis Hays
1898 Aug. 1 

Provenance: 1967 562ms

Mss.B.H334 Ellis, Charles to Isaac Hays
1843 

Provenance: 1967 562ms

Mss.B.H334 Emerson, G. to Isaac Hays
1839 Oct. 21 

On the same sheet as letter from Randolph.

Provenance: 1967 525ms

Mss.B.H334 Engel, Dr. to Isaac Hays
1878 Feb. 12 

Provenance: 1967 525ms

Mss.B.H334.1 Esmarch, D. to I. Minis Hays
1889 May 5 

Provenance: 1967 562ms

Mss.B.H334.1 Ewing, Maskell from I. Minis Hays
undated 

December 14.

Provenance: 1967 562ms

Mss.B.H334 Fahnestock, William M. to Isaac Hays
1833-1840 

4 items: 1831 Jul. 6, 1833 May 13, 1840 Feb. 29, 1840 Sep. 24

Provenance: 1967 525ms (1831, 1833), 1967 562ms (1840 Sep. 24), 1967 940ms (1840 Feb. 29)

Mss.B.H334 Featherstonehaugh Controversy
1831 

15 items:  George William Featherstonehaugh to Hays: 1831 Feb. 11 and 1831 Aug. 3 Hays's reply to Featherstonehaugh: 1831 Aug. 2 George W. Smith to Featherstonehaugh: 1831 Aug. 3 (3 letters) Statement by Franklin Peale, Reuben Haines, Henry Carey, A. D. Bache, Isaac Lea, and ?: May 1831 Copy of a statement by Richard Harlan: undated Copies of letters, bound by ribbon: Hays to Featherstonehaugh (Aug. 2, #1), G. W. Smith to Featherstonehaugh (Aug. 3, #2), Featherstonehaugh to Smith (Aug. 3, 1:30, #3), Smith to Featherstonehaugh (Aug. 3, 3:00, #4), Featherstonehaugh to Smith (Aug. 3, #5), Smith to Featherstonehaugh (Aug. 3, #6), third person presumably Featherstonehaugh to Smith (Aug. 4, #7)

Provenance: 1967 940ms

Mss.B.H334 Fisher, John D. to Isaac Hays
1827-1845 

16 items. Fisher to Hays: 1827 Jun. 6, 1838 Feb. 10, 1838 Mar. 21, 1838 Mar. 27, 1838 May 23, 1838 Oct. 17, 1838 Dec. 5, 1838 Dec. 26, 1841 Oct. 19, 1842 Mar. 22, 1843 May 31, 1843 Sep. 2, 1843 Oct. 14, 1845 Feb. 11. Hays to Fisher: 1844 Feb. 27. Fisher to William E. Horner: 1827 May 11.

Provenance: 1967 525ms (1843 Oct. 14, 1843 Sep. 2, 1843 May 31, 1842 Mar. 22, 1841 Oct. 19, 1838 Oct. 17, 1838 Mar. 27, 1827 May 11, 1827 Jun. 6), 1967 562ms (1845 Feb. 11), 1967 940ms (1838 Feb. 10, 1838 Mar. 21, 1838 May 23, 1838 Dec. 5, 26, 1844 Feb. 27)

Mss.B.H334 Flint, Austin to Isaac Hays
1881-1885 

9 items: 1881 Jan. 25, 1881 Feb. 25, 1881 Mar. 26, 1876 Sep. 22, 1885 May 9, 1885 May 15, 1885 Jun. 13, 1885 Aug. 6, 1885 Aug. 14

Provenance: 1967 562ms

Mss.B.H334 Francis, John W. to Isaac Hays
undated 

Provenance: 1967 525ms

Mss.B.H334 Franklin Institute to Isaac Hays
1828-1840 

18 items.

Provenance: 1967 525ms

Mss.B.H334.1 Free Library of Philadelphia to I. Minis Hays
1898-1900 

2 items: 1898 Sep. 20, 1900 May 5

Provenance: 1967 562ms

Mss.B.H334.1 Frick, Louis Dreka to I. Minis Hays
1884 Dec. 10 

Provenance: 1967 562ms

Mss.B.H334.1 Friedenwald, Herbert to I. Minis Hays
1898 Oct. 2 

Provenance: 1967 562ms

Mss.B.H334.1 Furness, H. H. to I. Minis Hays
1892-undated 

6 items: 1892 Feb. 5, 1896 Dec. 13, 1899 Jan. 9, 1907 Feb. 25, 1908 Mar. 25, undated Dec. 1

Provenance: 1967 525ms (1908, undated), 1967 562ms (1892, 1896, 1899, 1907)

Mss.B.H334 Furness, W. H. to Isaac Hays
undated 

Provenance: 1967 525ms

Mss.B.H334.1 Gardner, W. V. to I. Minis Hays
1891 Oct. 22 

Provenance: 1967 525ms

 Geological Society of London.
Letter to Isaac Hays
1833 November 21 1 page(s)

Thanking Hays for the donation of work describing mastadon bones at APS. Signed Charles Lyell, secretary.

Provenance: Accession: 1995 - 1241ms. Purchased from R.M. Smythe by funds from Friends of the APS.

Mss.B.H334 Ghinozzi, G. C. to Isaac Hays
1876 Feb. 6 

Provenance: 1967 525ms

Mss.B.H334 Glendenning, John to Isaac Hays
1834 Jul. 8 

Provenance: 1967 525ms

Mss.B.H334 Gliddon, Dr. to Isaac Hays
1856 Jun. 12 

Provenance: 1967 525ms

Mss.B.H334 Godman, John D. to Isaac Hays
1822-1826 

4 items: 5 Aug. 1822, 5 Dec. 1826, 8 Dec. 1826, 31 Dec. 1826 The initials "H.E.U." are used by Godman. Reason unknown. 7/15/81 J.S.C. [See endorsement on letter of July 30, 1827]

Provenance: 1967 - 525ms, 562ms, 940ms (5 Dec. & 8 Dec. 1826). 1995 - 1240ms (5 Aug. 1822 & 31 Dec. 1826)

Mss.B.H334 Godman, John D. to Isaac Hays
1827 

29 items: Jan. 2, 7, 17, 18, 26; Feb. 1, 15, 20; May 26; June 8, 17, 22; July 1, 5, 13, 15, 30; Aug. 3, 7, 14, 16, 23; Sept. 10, 19, 28; Nov. 15; Dec. 4, 10, 24. The initials "H.E.U." are used by Godman. Reason unknown. 7/15/81 J.S.C. [See endorsement on letter of July 30, 1827]

Provenance: 1967 525ms, 562ms, 940ms

Mss.B.H334 Godman, John D. to Isaac Hays
1828 

7 items: Jan. 13, 15; Feb. 19; March 8, undated; Monday; Thursday. The initials "H.E.U." are used by Godman. Reason unknown. 7/15/81 J.S.C. [See endorsement on letter of July 30, 1827]

Provenance: 1967 525ms, 562ms, 940ms

Mss.B.H334 Godman, John D. to Isaac Hays
undated 

4 items. The initials "H.E.U." are used by Godman. Reason unknown. 7/15/81 J.S.C. [See endorsement on letter of July 30, 1827]

Provenance: 1967 525ms, 562ms, 940ms

Mss.B.H334 Goodyear, Charles to Isaac Hays
1848 Jun. 21 

Provenance: 1967 525ms

 Gosler, Samuel.
Letter to Isaac Hays
1843 February 13 1 page(s)

Notifying Hays that he has been elected an honorary member to the Medico-Chirurgical Society of the Medical Department of the St. Louis University.

Provenance: 1995 - 1240ms

Mss.B.H334 Grateloup to Isaac Hays
1836-1838 

2 items: 1836 Jan. 11, 1838 Jan. 28

Provenance: 1967 525ms

Mss.B.H334 Gratz, Benjamin from Isaac Hays
1819 May 23 

Provenance: 1967 940ms

Mss.B.H334.1 Gratz, Simon to I. Minis Hays
1898 Sep. 30 

Provenance: 1967 562ms

Mss.B.H334.1 Green, Samuel A. from I. Minis Hays
1898 Feb. 23 

Provenance: 1967 562ms

Mss.B.H334 Griffith, R. E. to Isaac Hays
1837 Sep. 1 

Provenance: 1967 525ms

Mss.B.H334 Gross, Samuel David to Isaac Hays
1871-undated 

4 items: 1871 Mar. 14; 1884 Mar. 14, 15; undated Mar. 23.

Provenance: 1967 525ms (1871), 1967 562ms (1884, undated)

Mss.B.H334 Haines, Reuben to Isaac Hays
1823 Nov. 7 

Provenance: 1967 525ms

Mss.B.H334 Halberstadt, A. H. to Isaac Hays
1886 

Printed Action of the American Medical Association calling for all members of the Ninth International Medical Conference (1887) to be in accord with the National Code of Ethics. "Endorsed" is crossed out, and Halbertstadt's handwritten note expresses the opinion that the "question of code is simply a transparent subterfuge...medico-political chicanery." Signed by William H. Paulvart (?), William B. Atkinson, and P. D. Keyser; orientation may indicate endorsement of the printed Action.

Provenance: 1967 562ms

Mss.B.H334 Hall, Marshall to Isaac Hays
1853 

2 items: 1853 Jul. 29, Sep. 27

Provenance: 1967 525ms

Mss.B.H334 Hamilton, W. to Isaac Hays
1833 

Appointments to the Franklin Institute's committee on publications. (Date is somewhat unclear; may be 1823 rather than 1833.)

Provenance: 1967 562ms

Mss.B.H334 Harris, L. to Isaac Hays
1833 Aug. 24 

Provenance: 1967 525ms

Mss.B.H334.1 Hart, Charles Henry to I. Minis Hays
1908 Sep. 23 

Provenance: 1967 562ms

Mss.B.H334 Hartshorne, J. to Isaac Hays
undated 

Friday morning.

Provenance: 1967 525ms

 Haughton, Samuel to Isaac Hays
1861 Mar. 27 

Provenance: 1967 525ms

Mss.B.H334 Hayes, Isaac Israel to William Parker Foulke
1860 Apr. 25 

Provenance: 1988 256ms

Separated material: Moved to the William Parker Foulke Papers, Mss.B.F826.

Mss.B.H334 Hays, Isaac - Essay Deploring the State of Letters in America
undated 

Provenance: 1967 562ms

Mss.B.H334 Hays, Isaac - Scientific Notes on Pneumatics
undated 

Provenance: 1967 562ms

Mss.B.H334 Hays, Isaac to unknown recipients
1839-1841 

2 items: 1839 Oct. 24, 1841 Dec. 6

Provenance: 1967 525ms

Mss.B.H334 Hays, Isaac from unidentified correspondents
1844-undated 

4 items: 1844 Jan. 24, 1848 Mar. 16, 1849 Mar. 15, undated fragment

Provenance: 1967 525ms

Mss.B.H334.1 Hays, I. Minis - List of Sales and Exchange by States and Countries
undated 

Provenance: 1967 525ms

Mss.B.H334.1 Hays, I. Minis - Notes
undated 
Mss.B.H334 Hays, Samuel - Will
1824 May 21 

Provenance: 1967 940ms

 Hays, Samuel from Isaac Hays
1819 Aug. 14 

Provenance: 1967 940ms

Mss.B.H334 Hays, Sarah to Sarah Minis Hays
1834 Mar. 16 

Addressed to Sarah Ann Minis prior to her marriage.

Provenance: 1967 940ms

Mss.B.H334,334.1 Hays, Sarah Minis
1851-undated 

3 items: 1851 Dec. 3 from Ellen; undated Aug. 5 letter from her mother, Dinah (Cohen) Minis; undated birthday wishes to daughter Henrietta (with a postscript from Aunt Rea).

Provenance: 1967 525ms

Other Descriptive Information: Sarah Minis Hays was Sarah Ann Minis prior to her marriage, often called Sally.

 Hays, Sarah Minis to I. Minis Hays
1871 

2 items: 1871 Aug. 14, 1871 Aug. 20

Provenance: 1967 525ms

Mss.B.H334 Hays, Sarah Minis from Isaac Hays
1829-1833 

4 items: 1929 Oct. 25, Jul. 19; 1832 Feb. 11; 1833 Nov. 19. Addressed to Sarah Ann Minis, prior to their marriage.

Provenance: 1967 525ms (1833), 1967 940ms (1829, 1832)

Mss.B.H334 Hayward, George to Isaac Hays
1829-1832 

5 items: 1829 Aug. 8, Sep. 3, Nov. 5; 1832 Feb. 24, Mar. 5

Provenance: 1967 940ms, 1967 525ms (1829 Aug. 8)

Mss.B.H334 Haywood, James to Isaac Hays
1848 Dec. 3 

Provenance: 1967 525ms

Mss.B.H334 Henry, Joseph to Isaac Hays
1865 Aug. 12 

Provenance: 1967 525ms

Mss.B.H334.1 Henry, Uncle to Rose
1864 Jan. 29 

Regarding the obituary of Dr. Willie.

Provenance: 1967 525ms

Mss.B.H334 Hewson, Thomas Tickell to Isaac Hays
undated 

Wednesday, October 30

Provenance: 1967 562ms

Mss.B.H334.1 Hirst, Barton Cooke to I. Minis Hays
1917 Apr. 10 

Provenance: 1967 562ms

Mss.B.H334.1 Hoben, Mr. to I. Minis Hays
undated 

On same sheet as Judge Pennypacker to I. Minis Hays, undated.

Provenance: 1967 525ms

Mss.B.H334 Hodge, H. Lenox to Isaac Hays
1871 May 18 

Provenance: 1967 525ms

Mss.B.H334.1 Hodges, R. M. to I. Minis Hays
1872 Nov. 17 

Provenance: 1967 525ms

Mss.B.H334 Holmes, Oliver Wendell
1846-1848 

3 items: 1846 Apr. 9; 1848 May 12, Jun. 2

Provenance: 1967 940ms

Mss.B.H334 Holmes, T. to Isaac Hays
1852-1853 

2 items: 1852 Jul. 20, 1853 Feb. 21

Provenance: 1967 525ms

Mss.B.H334 Hood, Mrs. to I. Minis Hays
undated 

March 17.

Provenance: 1967 562ms

Mss.B.H334 Hooker, W. to Isaac Hays
1851 Oct. 1 

Provenance: 1967 525ms

Mss.B.H334 Hooker, Sir William Jackson to Isaac Hays
1824 Mar. 2 

Provenance: 1967 525ms

Mss.B.H334 Hookers, Edward to Isaac Hays
1844 Aug. 17 

Provenance: 1967 562ms

Mss.B.H334.1 Horatio to "dear cousins"
undated 

January 25. To "my fair cousins Miss Ellen, Miss Lillie and Miss Annie."

Provenance: 1967 525ms

Mss.B.H334 Horner, W. E. to Isaac Hays
1852 May 23 

Provenance: 1967 525ms

Mss.B.H334.1 Horsley, Victor to I. Minis Hays
1888 Sep. 23 

Provenance: 1967 562ms

Other Descriptive Information: See: 509:L56.45 Letters of Scientists

Mss.B.H334 Howe, S. G. to Isaac Hays
undated 

Howe to Hays, June 3. On the same sheet is Edward James to Hays, undated.

Provenance: 1967 525ms

Mss.B.H334 Ingersoll, Mrs. Charles E. and Phebe W. - Invitation
undated 

Invitation for Saturday, Sept. 14.

Provenance: 1967 562ms

Mss.B.H334 International Medical Congress. - Invitation
1876 Sep. 8 

Provenance: 1967 562ms

Mss.B.H334 Jackson, Charles J. to Isaac Hays
1848 Apr. 17 

Provenance: 1967 940ms

Mss.B.H334 Jackson, James, 1777-1867.
Jackson, James to Isaac Hays
1834-1855 

6 items: 1834 Dec. 23; [1838] Nov. 24; 1839 Feb. 14; 1851 Aug. 16; 1855 Sep. 10; 1855 Nov. 10

Provenance: 1967 940ms (1830s); 1967 525ms (1851); 1967 562ms (1855 Sep. 10); 1995 - 1240ms (1855 Nov. 10)

Mss.B.H334 Jackson, John to Isaac Hays
1843 June 13 

Provenance: 1967 562ms

Mss.B.H334 Jackson, S. to Isaac Hays
1832 Jun. 28 

Provenance: 1967 940ms

Mss.B.H334 Jacob, Dr. to Isaac Hays
1850 Jan. 12 

Provenance: 1967 525ms

Mss.B.H334 Jacobi, Abraham to Isaac M. Hays
1885-undated 

7 items: 1885 May 13, Jun. 6, Jul. 3, Jul. 7, Jul. 12; (2) undated

Provenance: 1967 562ms

Mss.B.H334 James, Edward to Isaac Hays
undated 

On the same sheet as S. G. Howe to Hays, June 3 undated.

Provenance: 1967 525ms

Mss.B.H334 James, Thomas C. to Isaac Hays
1824 Aug. 4 

Provenance: 1967 525ms

Mss.B.H334 Jayne, C. W. to Isaac Hays
1846 Feb. 1 

Provenance: 1967 525ms

Mss.B.H334 Johnson, Reverdy to Isaac Hays
1862 Apr. 1 

Provenance: 1967 562ms

Mss.B.H334.1 Joseph, Henry to I. Minis Hays
1893 Nov. 

2 items: 1893 Nov. 20, 29

Provenance: 1967 525ms (Nov. 20), 1967 562ms (Nov. 29)

Mss.B.H334.1 Joseph, J. H. to I. Minis Hays
undated 

March.

Provenance: 1967 562ms

Mss.B.H334.1 Jusserand, J. J. to I. Minis Hays
1923 

3 items: Mar. 25, Apr. 2, Apr. 19

Provenance: 1967 525ms

Mss.B.H334 Kane, Elisha Kent to Isaac Hays
1852 

Monday A.M. Authority for date of Summer 1852, G. W. Carner.

Provenance: 1967 525ms

Mss.B.H334 Kane, John Kintzing to Isaac Hays
1839 Jan. 1 

Provenance: 1967 525ms

Mss.B.H334 Keating, William Hypolitus to Isaac Hays
1822-1825 

7 items: 1822 Dec. 31 (3); 1824 Dec. 28 (3); 1825 Aug. 1

Provenance: 1967 334ms, 1967 940ms (1825)

Mss.B.H334.1 Keen, William Williams to I. Minis Hays
1907 Oct. 20 

Provenance: 1967 525ms

Mss.B.H334.1 Kelleys, Robert H. to I. Minis Hays
1900 May 8 

Provenance: 1967 562ms

Mss.B.H334 Kennedy, Emory to Isaac Hays
1839 Dec. 6 

Provenance: 1967 940ms

Mss.B.H334.1 Kimbeck, R. A. to I. Minis Hays
1885 Jul. 6 
Mss.B.H334 King, Richard to Isaac Hays
1849 Feb. 6 

Provenance: 1967 525ms

Mss.B.H334 Kirckhoff, Chevalier de to Isaac Hays
1833 Apr. 19 

Provenance: 1967 525ms

Mss.B.H334 Knight, Jonathan to Isaac Hays
1854-1857 

3 items: 1854 Aug. 4; 1857 Apr. 1, 14

Provenance: 1967 525ms

Mss.B.H334 Krock, Albert to Isaac Hays
1840 Oct. 11 

Provenance: 1967 940ms

Mss.B.H334 Lampato, F. to Giuseppe Togno
1834 May 15 

Provenance: 1967 525ms

Mss.B.H334 Lawrence, William to Isaac Hays
1844-1847 

3 items: 1944 Feb. 23, 1846 Feb. 4, 1847 Sep. 4

Provenance: 1967 525ms (1844), 1967 562ms (1847), 1967 940ms (1846)

Mss.B.H334 Le Plaz to Isaac Hays
1834 Mar. 1 

Le Plaz was Secretary of Ecole Royal des Mines. On receipt of 1933's Descriptions of the inferior maxillary bones of mastodons, in the cabinet of the American Philosophical Society, with remarks on the genus Tetracaulodon.

Provenance: 1967 562ms

Mss.B.H334.1 Lea, Arthur H. to I. Minis Hays
1909 Oct. 24 

Provenance: 1967 562ms

Mss.B.H334 Lee, Henry to Isaac Hays
1839 Mar. 15 

Provenance: 1967 940ms

Mss.B.H334.1 Lea, Henry Charles to I. Minis Hays
1876-1909 

3 items: 1876 International Medical Congress invitation; 1906 Dec. 17 and 1909 Oct. 22 to I. Minis Hays

Provenance: 1967 562ms

Mss.B.H334 Lea, Isaac to Isaac Hays
1874-1879 

2 items: 1874 Sep. 10, 1879 Jan. 1

Provenance: 1967 525ms (1874), 1967 562ms (1879)

 Lea, William H.
  

Unlocated June 2011.

Mss.B.H334 Leland, Charles G. to Isaac Hays
1869 Apr. 20 

Provenance: 1967 525ms

Mss.B.H334.b Lesueur, Charles Alexandre to Isaac Hays
1827-1832 1 volume(s) Bound volume. volume 1:
reel 1363

Bound volume also includes correspondence from Charles Lucien Bonaparte, George Ord, and Thomas Say.

Provenance: 1967 256g

Mss.B.H334 Lewell, Thomas to Isaac Hays
1830-1835 

3 items: 1830 May 18, 1834 Dec. 30, 1835 Oct. 15

Provenance: 1967 525ms

Mss.B.H334 Livingston, E. to B. F. Peale
1834 Jul. 3 

Provenance: 1967 525ms

Mss.B.H334 Longmore, Robert to Isaac Hays
1873 May 7 

Provenance: 1967 562ms

Mss.B.H334.1 McMarter, John Bach to H. LaBarr Jaynes
1906 Dec. 27 

Provenance: 1967 562ms

Mss.B.H334 McWilliam, J. O. to Isaac Hays
1849 Jun. 1 

Provenance: 1967 525ms

Mss.B.H334 McWilliams, Dr. to Isaac Hays
1847 Jul. 1 
Mss.B.H334.1 Mackerosie(?), John N. to I. Minis Hays
1885 Jul. 1 

Provenance: 1967 562ms

Mss.B.H334.1 Mary from I. Minis Hays
undated 

On same sheet as Thomson to Hays, 1912 Dec. 5.

Provenance: 1967 562ms

Mss.B.H334 Madden, Thomas More to Isaac Hays
1871 May 24 

Provenance: 1967 525ms

Mss.B.H334 Marsh, George P. to Isaac Hays
1845-1848 

2 items: 1845 Dec. 2, 1848 Jan. 3

Provenance: 1967 525ms (1845), 1967 562ms (1848)

 Maskell
  

Unlocated June 2011. Possibly Robert Maskell Patterson.

Mss.B.H334.1 Mastin, C. H. to I. Minis Hays
1885 Aug. 11 

Provenance: 1967 562ms

Mss.B.H334 Meddlemore, Richard
1837-1839 

3 items: 1837 Sep. 17, 1838 Oct., 1839 Dec. 20

Provenance: 1967 562ms (1837, 1838), 1967 940ms (1839)

Mss.B.H334 Medical and Physical Society of Bombay to Isaac Hays
1853 Feb. 1 

Provenance: 1967 562ms

Mss.B.H334 Medical Society of Hamburg to Isaac Hays
1841 Jan. 

Provenance: 1967 525ms

Mss.B.H334 Meigs, Charles Delucena to Isaac Hays
undated 

March 17.

Provenance: 1967 525ms

Mss.B.H334.1 Meigs, H. I. to I. Minis Hays
1908 Oct. 30 

Provenance: 1967 562ms

Mss.B.H334.1 Miller, Leslie W. to Mr. Jayne
1906 Dec. 12 

Provenance: 1967 562ms

Mss.B.H334 Minis, Ellen to Sarah Minis Hays
1855-undated 

2 items: 1855 Aug. 14, undated Jul. 27

Provenance: 1967 525ms

Mss.B.H334 Minis, Isaac to Isaac Hays
1833 Dec. 7 

Provenance: 1967 940ms

Mss.B.H334 Mitchell, J. K. to Isaac Hays
1839-undated 

2 items: 1839 Oct. 21; undated

Provenance: 1967 525ms

Mss.B.H334.1 Montgomery, Archibald R. to I. Minis Hays
1908 Nov. 3 

Provenance: 1967 562ms

1967 Montreal Mechanics' Institute to Isaac Hays
1829 Oct. 8 

Provenance: 1967 525ms

Mss.B.H334 Moore, Charles H. to Isaac Hays
1858 May 12 

Provenance: 1967 562ms

Mss.B.H334 Morton, W. G. to Isaac Hays
1850 Sep. 23 

Provenance: 1967 525ms

Mss.B.H334 Moses, Horace to Isaac Minis
undated 

Provenance: 1967 562ms

Mss.B.H334 Mott, Valentine to Isaac Hays
1841 Dec. 2 

Provenance: 1967 940ms

 Nagayo, Sensai, 1838-1902.
Letters to Isaac Minis Hays
1876-1878 2 item(s)

2 items: 1876 Dec. 11 - thanking Minis Hays for his hospitality during Nagayo's visit; 1878 Aug. 27 - thanking Minis Hays for sending the three works on the surgical history of the war of the rebellion; is sending this letter along with two porcelain vases as gratitude

Provenance: 1995 - 1240ms

Mss.B.H334 National Institute for the Promotion of Science - Printed extract of minutes
1832 Jun. 13 

Provenance: 1967 940ms

Mss.B.H334 National Medical Association - Resolutions
1847-undated 

2 items: May 1847 (including drafts), undated

Provenance: 1967 562ms

Mss.B.H334 Norsk Magazin for Lagevidenskaben to Isaac Hays
1842 Jun. 28 

Provenance: 1967 525ms

Mss.B.H334.1 Noyer, Henry D. to I. Minis Hays
1885 Jul. 31 
Mss.B.H334 Nuttall, Thomas to Isaac Hays
1786-1859 
Mss.B.H334 Oppenheim, I. to Isaac Hays
1839 Mar. 25 

Provenance: 1967 525ms

Mss.B.H334.b Ord, George to Isaac Hays
1828-1855 1 volume(s) Bound volume. reel 1363:
volume 1

Bound volume also includes correspondence from Charles Lucien Bonaparte, Thomas Say, and C. A. Lesueur.

Provenance: 1967 256g

Mss.B.H334.1 Osler, Grace R. to Isaac Minis Hays
1924-1925 

4 items: 1924 Sep. 16, 1924 Nov. 7, 1925 Jan. 22, reply from Hays

Provenance: 1967 525ms (1924 Nov. 7), 1967 562ms

Mss.B.H334 Otto, C. to Isaac Hays
1832-1843 

6 items: 1832 Oct. 20, 1835 Aug., 1840 Apr. 13, 1841 Apr. 13, 1842 Aug., 1843 Apr. 13

Provenance: 1967 525ms

Mss.B.H334.1 Parker, Francis L. to I. Minis Hays
1885 

2 items: 1885 Jul. 24, Aug. 11

Provenance: 1967 562ms

Mss.B.H334 Pascalis, Felix to Isaac Hays
1828 Aug. 15 

Provenance: 1967 940ms

Mss.B.H334 Patterson, Robert Maskell
1831 Nov. 13 

Provenance: 1967 525ms

Mss.B.H334 Paul, John R. to Isaac Hays
1837 Jan. 29 

Provenance: 1967 940ms

Mss.B.H334 Peace, Edwin to Isaac Hays
1832 Apr. 

Provenance: 1967 525ms

Mss.B.H334 Peale, Reubens to Isaac Hays
1831 Jul. 21 

Provenance: 1967 525ms

Mss.B.H334 Peaslee, E. R. to Isaac Hays
1849 Feb. 20 

Provenance: 1967 525ms

Mss.B.H334 Peirson, A. L. to Isaac Hays
1847 Nov. 17 

Provenance: 1967 525ms

Mss.B.H334.1 Pemberton, Henry to H. LaBarr Jayne
1906 Dec. 12 

Provenance: 1967 562ms

Mss.B.H334 Pennock, C. W. to Isaac Hays
1850 Mar. 31 

Provenance: 1967 940ms

Mss.B.H334.1 Pennypacker, Judge to I. Minis Hays
undated 

On same sheet as Hoben to Hays, undated.

Provenance: 1967 525ms

Mss.B.H334.1 Pepper, John to I. Minis Hays
1885 Jul. 4 

Provenance: 1967 562ms

Mss.B.H334 Phillips, Barnet to Isaac Hays
1846 Apr. 6 

Provenance: 1967 525ms

Mss.B.H334.1 Phillips, William to I. Minis Hays
1904 Jan. 1 

Provenance: 1967 562ms

Mss.B.H334 Pouralban, Baron de to Isaac Hays
undated 

September 26.

Provenance: 1967 525ms

Mss. B. H334 Priestly, (?) to Isaac Hays
1889 Mar. 2 

Provenance: 1967 562ms

Mss.B.H334.1 Purves, G. C. to I. Minis Hays
1909 Nov. 16 

Provenance: 1967 562ms

Mss.B.H334.1 Putman, Herbert to I. Minis Hays
1900 May 1 

Provenance: 1967 562ms

Mss.B.H334.1 Ramsey, Frank M. - Quinine pill recipe
1882 Dec. 23 

Provenance: 1967 562ms

Mss.B.H334 Randall, J. to Isaac Hays
1847 Jul. 24 

Provenance: 1967 525ms

Mss.B.H334 Randolph, J. to Isaac Hays
1839 Oct. 21 

On same sheet as letter from Emerson.

Provenance: 1967 525ms

Mss.B.H334 Ranking, William Harcourt to Isaac Hays
undated 

Provenance: 1967 525ms

Mss.B.H334 Reed, William B. to Isaac Hays
1827-1850 

2 items: 1827 Jan. 27, 1850 Aug. 16

Provenance: 1967 525ms

Mss.B.H334.1 Reyburn, John E. to I. Minis Hays
1908 Feb. 15 

Provenance: 1967 562ms

Mss.B.H334 Rhode Island Medical Society to Isaac Hays
1858 Jul. 28 

Provenance: 1967 525ms

Mss.B.H334 Rigby, Edward
1843 Mar. 9 

2 items: Letter to Isaac Hays, letter to Lea & Blanchard

Provenance: 1967 525ms

Mss.B.H334 Riofrey, Bernard to Isaac Hays
1849 Nov. 26 

Provenance: 1967 525ms

Mss.B.H334 Ross, A. to Isaac Hays
1853 Nov. 23 

Provenance: 1967 525ms

Mss.B.H334 Ryan, M. to Isaac Hays
1840 Feb. 4 

Provenance: 1967 525ms

Mss.B.H334.b Say, Thomas to Isaac Hays
1826-1832 1 volume(s) Bound volume. volume 1:
reel 1363

Bound volume also includes correspondence from Charles Lucien Bonaparte, George Ord, and C. A. Lesueur.

Provenance: 1967 256g

Mss.B.H334.1 Sergeant, J. D. to Samuel Bradford
1876 Mar. 6 

Provenance: 1967 525ms

Mss.B.H334 Sewall, Thomas to Isaac Hays
1827-1829 

8 items: 1827 Aug. 4, 31, Sep. 14, Oct. 11, Nov. 8, Dec. 5; 1828 Mar. 3; 1829 Apr. 30

Provenance: 1967 525ms (1829 Apr. 30, 1828 Mar. 3), 1967 940ms (1827 Aug. 4, 31, Sep. 14, Oct. 11, Nov. 8, Dec. 5)

Mss.B.H334 Sewell, Thomas to Isaac Hays
1830-1843 

13 items: 1830 Jan. 3, 1830 Oct. 20, 1831 Jan. 31, 1831 Mar. 12, 1831 Nov. 2, 1833 Feb. 11, 1833 Nov. 7, 1836 Mar. 21, 1836 Aug. 28, 1837 Apr. 24, 1839 Apr. 30, 1843 Mar. 6, 1843 Dec. 14

Provenance: 1967 525ms (1830 Oct. 20, 1831 Mar. 12, 1837 Apr. 24, 1839 Apr. 30, 1843 Dec. 14), 1967 562ms (1830 Jan. 3, 1831 Jan. 31, 1833 Feb. 11, 1836 Aug. 28), 1967 940ms (1831 Nov. 2; 1833 Nov. 7; 1836 Mar. 21; 1843 Mar. 6)

Mss.B.H334 Shoemaker, John V. to I. Minis Hays
1885 

1885 June 8, 9, 16 Shoemaker to Hays regarding AMA Committe business and scheduling; undated postscript (Hays to Billings?) regarding $400 appropriation.

Provenance: 1967 562ms

Separated material: 1885 May 10 Billings to Hays (possibly a copy) moved to Billings folder.

Mss.B.H334 Sieveking, E. H. to Isaac Hays
1858 Nov. 4 

Provenance: 1967 525ms

Mss.B.H334 Smith, A. H. to I. Minis Hays
1885 Jul. 24 

Provenance: 1967 562ms

Mss.B.H334 Smith, Joseph M. to Isaac Hays
1834-1838 

2 items: 1834 Dec. 3, 1838 Mar. 12

Provenance: 1967 940ms (1834), 1967 525ms (1838)

Mss.B.H334.1 Smith, Lloyd P. to I. Minis Hays
1883 Jan. 6 

Provenance: 1967 562ms

Mss.B.H334 Smith, Nathan Ryno to Isaac Hays
1837-1838 

6 items: 1837 Apr. 23; 1838 Jun. 13, Jul. 6, Sep. 6, Sep. 12, Sep. 14

Provenance: 1967 940ms

 Smith, William T..
Letter to Isaac Hays
1834 February 4 1 page(s)

Appointing Hays as surgeon at Wills Hospital, Philadelphia.

Provenance: 1995 - 1240ms

Mss.B.H334 Smyth, Dr. to Isaac Hays
1844 Jul. 5 

Provenance: 1967 525ms

Mss.B.H334 Société Anonyme du Bulletin Universe to Isaac Hays
1830 Mar. 10 

Provenance: 1967 562ms

Mss.B.H334 Société Universelle d'Opthalmologie to Isaac Hays
1862 Feb. 8 

Provenance: 1967 525ms

Mss.B.H334 Sowerby, James de Carle to Isaac Hays
1822-1825 

2 items: 1822 Dec. 16, 1825 Aug. 22

Provenance: 1967 525ms

Mss.B.H334 Sparks, Jared to Isaac Hays
1826 Jul. 29 

Provenance: 1967 940ms

Mss.B.H334 Stankey, Thomas to Isaac Hays
1878 May 9 

Provenance: 1967 562ms

Mss.B.H334.1 Sternberg, George M. to I. Minis Hays
1881 Feb. 8 

Provenance: 1967 562ms

Mss.B.H334 Stevens, A. H. to Isaac Hays
1848 

2 items: 1848 May 15, Aug. 11

Provenance: 1967 525ms (Aug), 940ms (May)

Mss.B.H334.1 Stillé, Alfred from I. Minis Hays
1898-undated 

2 items: 1898 Aug. 5, undated.

Provenance: 1967 562ms

Mss.B.H334 Streatfield, J. J. to Isaac Hays
1858 May 4 

Provenance: 1967 525ms

Mss.B.H334 Swainson, William to Isaac Hays
1827 Mar. 17 

Provenance: 1967 940ms

Mss.B.H334 Swett, John A. to Isaac Hays
1844 

2 items: 1844 Oct. 31, Nov. 12

Provenance: 1967 525ms

Mss.B.H334 Tartini, Ferdinando to Isaac Hays
1840 Dec. 28 

Provenance: 1967 525ms

Mss.B.H334 Thiebaut de Barneaud, Arsenne to Isaac Hays
1826 Aug. 17 

Provenance: 1967 525ms

Mss.B.H334.1 Thomson, John to I. Minis Hays
1912 Dec. 5 

Invitation acceptance is on the same sheet as a letter from Hays to Mary.

Provenance: 1967 562ms

Mss.B.H334.1 Thomson, William to I. Minis Hays
1903 May 27 

Provenance: 1967 562ms

Mss.B.H334 Ticknor, George to Isaac Hays
undated 

Provenance: 1967 525ms

 Toner, Joseph M.
  

Extract of a letter. Includes photocopies of the original.

Provenance: 1967 562ms

Mss.B.H334 Tucker, George to Isaac Hays
1858 May 7 

Provenance: 1967 525ms

Mss.B.H334.1 Tulman, R. P. to Mrs. G. B. Hays
1930 May 1 

Provenance: 1967 562ms

Mss.B.H334 Twining, W. to Isaac Hays
1831-1833 

4 items: 1831 Jan. 10; 1833 Mar. 22 (2), Nov. 26

Provenance: 1967 562ms (1833 Mar. 22), 525ms

Mss.B.H334.1 Tyson, James to I. Minis Hays
1910 May 9 

Provenance: 1967 562ms

Mss.B.H334 University of Pennsylvania Graduating Class to I. Minis Hays
undated 

Provenance: 1967 562ms

Mss.B.H334 Van Buren, William to Isaac Hays
1845 Aug. 18 

Provenance: 1967 525ms

Mss.B.H334 Vigors, N. A. to G. B. Sowerby
1826 Dec. 8 

On same sheet as C. L. Bonaparte to Vigors, 1826 Dec. 19.

Provenance: 1967 525ms

Mss.B.H334 W?, G. W. to I. Minis Hays
undated 

July 9, regarding finances and repairs.

Provenance: 1967 525ms

Mss.B.H334 Wade, Dr. to Isaac Hays
1862 Jun. 5 

Provenance: 1967 562ms

Mss.B.H334 Walsh, Robert to Isaac Hays
undated 

May.

Provenance: 1967 562ms

Mss.B.H334 Warner, Langdon
undated 

To the heirs of Henriette Hays. Thanks for a gift of a saucepan, c. 1721, to the Pennsylvania Museum and School of Industrial Art.

Provenance: 1967 562ms

Mss.B.H334.1 Warner, William R. to I. Minis Hays
1882-undated 

4 items: 1882 Dec. 22, 23, 26; undated

Provenance: 1967 562ms

Mss.B.H334 Warren, Edward to Isaac Hays
1838 Sep. 14 

Provenance: 1967 525ms

Mss.B.H334 Warren, John C. to Isaac Hays
1833-1848 

11 items: 1833 Nov. 18, 1836 Apr. 27, 1837 May 18, 1838 Aug. 25, 1840 Apr. 13, 1846 Apr. 10, 1846 May 5, 1846 May 28, 1847 Mar. 15, 1848 Mar. 21, 1848 Jul. 5

Provenance: 1967 525ms (1836 Apr. 27, 1838 Aug. 25, 1846 Apr. 10, 1846 May 28, 1846 May 5, 1847 Mar. 15, 1848 Mar. 21), 1967 940ms (1833 Nov. 18, 1837 May 18, 1840 Apr. 13, 1848 Jul. 5)

Mss.B.H334 Warren, John C. to Isaac Hays
1849-undated 

12 items: 1849 Feb. 16, 1849 Feb. 26, 1849 Feb. 27, 1849 May 9, 1849 May 19, 1849 Sep. 6, 1850 Jan. 7, 1850 Jan. 31, 1850 Feb. 4, 1855 Feb. 2, 1855 May 12, undated Jun. 9

Provenance: 1967 525ms (1850 Feb. 4, 1850 Jan. 31, 1850 Jan. 7, 1855 Feb. 2, undated Jun. 9), 1967 562ms (1849 Feb. 26, 1849 Feb. 27, 1855 May 12), 1967 940ms (1849 Feb. 16, 1849 May 19, 1849 May 9, 1849 Sep. 6)

Mss.B.H334 Warren, J. Mason to Isaac Hays
1846-undated 

5 items: 1846 Feb. 1, 1847 Dec. 17, 1848 Jan. 20, 1849 May 25, undated May 25

Provenance: 1967 525ms, 940ms (1849)

 Warren, Mason J.
  

Unlocated June 2011. Possible J. Mason Warren.

Mss.B.H334.1 Welch, William Henry to I. Minis Hays
1901 Apr. 29 

Provenance: 1967 562ms

Mss.B.H334 Wernerian Natural History Society of Edinburgh to Isaac Hays
1835 Mar. 1 

Provenance: 1967 525ms

Mss.B.H334 West, Charles to Isaac Hays
1850 Apr. 1 

Provenance: 1967 525ms

Mss.B.H334 White, Thomas W. to Isaac Hays
1967 940ms 

Provenance: 1967 940ms

Mss.B.H334.1 Wiesner, Wilson Reynolds to I. Minis Hays
1909 Nov. 18 

Provenance: 1967 562ms

Mss.B.H334 Wilkes, Charles
undated 

August 21.

Provenance: 1967 525ms

Mss.B.H334 Wilkes, George to Isaac Hays
1842 Dec. 21 

Provenance: 1967 525ms

Mss.B.H334 Williams, H. I.
undated 

September 30.

Provenance: 1967 562ms

Mss.B.H334 Winslow, Forbes to Isaac Hays
1850-1857 

2 items: 1850 Oct. 26, 1857 May 4

Provenance: 1967 525ms

 Winthrop, Robert Charles, 1809-1894.
Letter to Isaac Hays
1857 January 27 2 page(s)

Regarding a memorial of the American Medical Association

Provenance: 1995 - 1240ms

Mss.B.H334.1 Witmer, Emma R. to I. Minis Hays
1908 Oct. 30 

Provenance: 1967 562ms

Mss.B.H334 Woakes, Edward to Isaac Hays
1878 Feb. 19 

Provenance: 1967 562ms

Mss.B.H334 Wood, Emma
1858 Aug. 1 

To "My dear cousin," detailing travel.

Provenance: 1967 525ms

Mss.B.H334 Wood, George Bacon
1848-1853 

2 items: 1848 Jun. 14, 1853 May 6

Provenance: 1967 525m (1853), 940ms (1848)

Mss.B.H334.1 Wood, Grace A. to I. Minis Hays
1922 Feb. 24 

Provenance: 1967 525ms

Mss.B.H334 Wyman, J. to Isaac Hays
1852 Jul. 22 

Provenance: 1967 525ms

Mss.B.H334 Wyman, M. to Isaac Hays
1848 Jun. 8 

Provenance: 1967 562ms