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.

Power of attorney for Thomas Whippo, 1798 October 10

A handwritten translation of a power of attorney, on two folio-sized leaves, certified by Francis Sales and dated October 10, 1798. The power of attorney authorizes Isaac Whippo, an American citizen living in Bordeaux, France to act as the attorney general and special for his brother, Thomas Whippo, also an American citizen and captain of the ship the Ganges of New York. The power of attorney was created in the Office of Gabriel Duprat in Bordeaux, with William Henry Vernon translating for Thomas Whippo and was notarized by Joseph Fenwick, Consol of the United States of America on April 14, 1798.

Memorial of the President and Fellows of Harvard College to the General Court for the enlargement of their power to hold real estate. Copy, [1797 July 15]

Four folio-sized leaves containing a handwritten copy of a petition to the Massachusetts General Court from the Harvard Corporation requesting the College's amount of tax exempt real estate be enlarged.