8 letters from Mary Pratt to her mother, one dated Nov. 1874 and the remaining seven between April 1877 and May 1880. The 1874 letter recounts making molasses with her classmates at Vassar. Remaining letters describe making chicken costumes for the Philalethean entertainment, the junior class playing Halloween pranks on the seniors, making a speech of thanks on behalf of the junior class to the seniors for inviting them to a parlor party rather than taking revenge for the Halloween pranks, skating, a debate and operetta performed by Vassar students, her election as student association president, and the Shakespeare Club yacht party and visit to the historic Montgomery house. Highlights of Pratt's senior year include social visits, the opening of the senior parlor and reception for the freshmen, the April 1880 dedication of the new laboratory by Matthew Vassar, Jr. and President Caldwell, and Pratt's Founders' Day speech as student association president. Pratt encloses the Class Day program in which she is listed as M. S. Morris.,VC 1880