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This collection is comprised of a 4-page letter from surveyor and scientist Cadwallader Colden to botanist John Frederic Gronovius (October 1, 1755), in which he enclosed 17 pages of his daughter Jane's botanical descriptions and leaf impressions (1755).

This collection is comprised of a 4-page letter from surveyor and scientist Cadwallader Colden to botanist John Frederic Gronovius (October 1, 1755), in which he enclosed 17 pages of his daughter Jane's botanical descriptions and leaf impressions (1755). Cadwallader Colden mentioned that his previous correspondence may have been delayed on account of the capture of the packet by privateers, remarked on women and botanical study, praised his daughter's willingness to collaborate on botanical projects (and her possible discover of new genera), and expressed his esteem for Carl Linnaeus and the Linnaean system. Colden also mentioned the Royal Garden at Paris and referred to other scientists, including "Dr. Haller" [Albrecht von Haller] and "Mr. Calm" [Peter Kalm].

Colden enclosed a sampling of Jane's botanical work which contains descriptions of plants (e.g. cup, flower, chives, pistil, cover of seed, seeds, seat of the seeds, root, stalk, leaves) and leaf impressions.

• No. 299: Diandria Monogynia
• No. 302: [No name present]
• No. 300: Tetriandria Digynia
• No. 241: Pentandria Trigynia
• No. 291: Didynamia Gymnospermia
• No. 216: [No name present]
• No. 215: [No name present]
• No. 296: Clinopodium (Mountain-Mint)
• No. 304: Monadelphia Polyandria
• No. 153: Polyadelphia Enneandria
• No. 297: Syngenesia Polygamia Superflua (Helenia)

• No. 153: Polyadelphia Enneandria
• No. 304: Monadelphia Plyandria
• No. 297: Syngenesia Polygamia Superflua (Helenia)
• [Not numbered]: Rubus
• No. 296: Clinopodium (Mountain-Mint)
• No. 291: Didynamia Gymnospermia
• No. 299: Diandria Monogynia
• No. 300: Tetriandria Digynia
• No. 216: [No name present]
• No. 215: [No name present]
• No. 302: [No name present]

A single newspaper clipping from December 14, 1765, accompanies the Colden manuscripts. The clipping includes the text of a letter received by Lieutenant Governor Cadwallader Colden, which prompted his "declaration that he would have nothing to do with the Stamps [Stamp Act, 1765] till the arrival of Sir Henry Moore." The printed letter threatens death to Cadwallader Colden if he were to enforce the Stamp Act. The printed letter contains the text of two labels that were affixed to the effigies of enemies of American liberties hung in Boston on November 4 at the Tree of Liberty.

This collection contains correspondence and newspaper clippings collected by Cora Clarke, a respected female botanist and entomologist.

This collection consists of 23 letters, five newspaper clippings, and six miscellaneous items. Nineteen of the letters are addressed to Cora Clarke, with four to her mother and one to her father. No single correspondent or time frame dominates the collection, nor are there themes which run through all the letters, except in the most general sense. Prominent people represented in the collection as correspondents include Grace Greenwood (a.k.a. Sarah Jane Clarke Lippincott), Jacob Abbott, James Freeman Clarke, Edward Sylvester Morse, Alpheus Spring Packard Jr., Robert Collyer, Samuel Eliot, Francis Parkman, and Elizabeth Cabot Cary Agassiz.

The Clarke Papers appears to consist largely of letters retained for their autograph value, more than their substance. Clarke's botanical and entomological activities appear most clearly in letters from the Cambridge Entomological Club (1878 November 16) and Francis Parkman. However, only Charles Russell's letter discussing the anatomy of flowers (1870 December 19), provides anything approaching a lengthy or in-depth discussion. More typical are a letter dated 1875 May 25, mentioning the Boston Society of Natural History and the "Society to encourage studies at home," and a receipt for a summer botany course (1874 August 4) suggesting Clarke's commitment to continuing education. The value of the collection lies primarily in creating an impressionistic portrayal of a respected female scientist at a time when she was maturing into adulthood.