The nature-printed British sea-weeds : a history, accompanied by figures and dissections of the Algae of the British Isles / By William Grosart Johnstone and Alexander Croall. Nature printed by Henry Bradbury.

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Letter from William Croswell to Daniel P. Colesworthy, 1818 January 8

Draft of a one-page letter concerning the payment of a bill and mentioning Croswell's health.

Letter from Sarah Bumstead to William Croswell, 1818 January 15

One-page letter from Croswell's sister with news about her activities.

Letter from William Croswell regarding Mrs. Collins, 1818 February 19

Draft of a one-page letter to an unidentified recipient regarding payment to Mrs. Collins for washing.

Letter from William Croswell to Ephraim Eliot, 1818 November 10

Draft of a one-page letter thanking Eliot for money.

Note from William Croswell to Levi Frisbie, 1818 November 30

Brief note with a complaint about the servant of Levi Frisbie, Harvard Professor of Natural History.

Letter from William Croswell to John Davis, 1818 December 5

Draft of a one-page letter to Judge John Davis regarding a mathematical problem.

Letter from John Henry Tudor to his father, William Tudor, November 10, 1796

This letter was sent to Tudor's father in London, England in care of Thomas Dickason & Co.

Letter from John Henry Tudor to his brother, William Tudor, 1796

Tudor wrote this letter on a "Saturday morn[ing]." Although he wrote "1896" on the exterior, he presumably meant 1796.

Letter from John Henry Tudor to his father, William Tudor, June 1, 1797

This letter was sent to Tudor's father in London, England in care of Thomas Dickason & Co.

Letter from John Henry Tudor to his brother, William Tudor, 1796

Tudor wrote "1896" on the exterior of this letter; he presumably meant 1796.

Letter from John Henry Tudor to his brother, William Tudor, July 28, 1799

This letter was sent to Tudor's brother in Paris, France, via a Mr. Bromfield.