These are 94 pages of notes, by an unknown author, pertaining to the first and second classes of zoology.

This diary records the weather and appearances of birds, flowers, and insects.

These are sixty letters to William Clark, a physician in London and Bradford, Wiltshire.

Notebooks written during the voyage of the Beagle, 1831-1836. From eighteen original notebooks at Down House, Kent.

This contains records of Hayes and his sons who were in the Cuban and Caribbean trade up to ca. 1810. Thereafter, the sons carried out the actual voyages, and Patrick Hayes remained in Philadelphia as a commission merchant.

These forty-five letters concern legal and political matters, Indian languages and linguistics, philological matters, and the American Philosophical Society.

Correspondence to and from John Bartram and his son, William Bartram.

Letters dated post-1792 are from Francis Kinlock to "Prevost."

Correspondence with Philadelphia institutions, from Accademia delle Scienze. Letters, principally of a formal character, from the APS, Academy of Natural Sciences, Wistar Institute, Wagner Free Institute of Science, and other learned societies and institutions; also a letter from John Vaughan to Prospero Balbo, 1832; with drafts of some replies.

This correspondence is chiefly to William Bartram concerning personal matters and birds.

From the original manuscript held at the Friends Historical Library, Swarthmore College. Contains drafts of this Civilization of the Indian Natives (Philadelphia, 1830). Described by George S. Snyderman, "Halliday Jackson's Journal of a Visit Paid to the Indians of New York (1806)," APS Proc. 101 (1957): 565.

The journal contains an account of a visit to the Indians of New York State.

Letterbook kept by Hawkins at the Creek Agency, including outgoing letters, memoranda, speeches to and from Creek and Choctaw Indians; materials relating to Indian affairs; the attempt to survey the St. Mary's River; Spanish-U.S. relations. Includes a "Sketch" of the Indians at the Creek Agency; political organization, agriculture, manufacture, public establishments; justice. Materials written variouslv at Fort Wilkinson, Tukebatchee, and Coweta.

These letters are principally by Voltaire.

These sixteen letters are principally to Sarah Franklin Bache, Joseph Galloway, and William Strahan.

An analysis of the contents of magazines, including at least one newspaper called a magazine.

These manuscripts are lists and descriptions of plants.

There are nine items on this reel, including letters concerning Indian affairs at Detroit, Indian lands and surveys of Moravian Indian lands on the Muskingum (with maps), estimates of settlers north of the Ohio (1793), and a report concerning the conduct of the British respecting the Indian war (1793).