MEMOIR OF RALPH STOCKMAN TARR.

Ralph Stocliman Tarr was born on January 15, 1864, in Gloucester, Massachusetts. He died, after a brief illness, at his home in Ithaca, March 21, 1919, being a little more than forty-eight years of age. On graduation from the high school in 1881, Tarr's interest in science led him to enter the summer school of the Peabody Academy at Salem. He accomplished much work on the geology of Cape Ann, a problem which he says was much too big for his experience. It may in truth be said, however, that the report on that region published in the Ninth Annual Report of the United States Geological Survey is substantially Tarr's work.