Notebook on logarithms, ca. 1714-1718, 1747

This notebook is missing at least one page, as it begins in the midst of a problem. It contains extensive notes on logarithms and various related examples, problems, and calculations. Prince made notes on the addition, subtraction, multiplication, and division of logarithms, as well as some notes on navigation. The last two pages of this notebook contain a draft of a letter from Prince to an unnamed gentleman in London, thanking him for his financial support. This is believed to have been written in June 1747, when Prince arrived in Portsmouth, England "without one six pence in [his] pocket & without Hat, Coat, Breeches, Shirts, Stockings or shoes fit to come up to London with." In the letter, he thanks this donor for his support and describes in detail his situation and the challenges facing him in leaving the Navy and beginning missionary work. He refers several times to Dr. Philip Bearcroft, the Secretary of the Society for the Propagation of the Gospel, who was responsible for his approval as a Missionary to the Moskito tribe.

Annotated almanac, 1747

Almanac containing calendar pages with sporadic annotations of unidentified measurements and interleaved pages with short handwritten entries about Winthrop's daily activities, and astronomical and meteorological observations. The entries include personal notes about travel, the weather, deaths in the community, and the hiring and dismissal of servants.

Meteorologic observations at Cambridge in New England, 1744-1747

Notebook containing handwritten meteorologic observations and calculations made by John Winthrop for the years 1744 (18 pages), 1745 (23 pages), 1746 (15 pages), and 1747 (20 pages). The verso of the last page in the volume contains the note "presented June 16 1748.")

The Summary of a Course of Experimental Philosophical Lectures, 1746-1747

Leather hardcover notebook containing a handwritten copy of John Winthrop's course of experimental and philosophical lectures presented between March 10, 1746 and June 16, 1746. The first one-hundred pages of the volume are divided into twenty chapters which were presented in thirty-three lectures. The chapters contain text and diagrams on mechanical powers, the lever, the pulley, the axis in peritrochio, the inclined plane, the wedge, the screw, compound engines, the laws of motion, gravity, attraction of cohesion, the power of repulsion, magnetism, fluids, electricity, opticks, and astronomy. There is a five-page addenda to the course summary added in 1747, and a sixty-page text titled "The Method of Astronomical calculations" containing thirteen problems related to calculating distances with a list of astronomical characters, and followed with charts related to the eclipse of Jupiter's satellites.

1806, Catalogus senatus academici, eorum, qui munera et officia gesserunt, quique alicujus gradûs laureâ donati sunt in Univaersitate Harvardiana, Cantabrigiae, in republica Massachusettensi.

Hand-sewn marbled paper binding. Catalogue interleaved with unlined pages holding occasional biographical notes.