Born in Brattleboro, Vt., Mr. Cabot attended the Sheffield Scientific School at Yale and in 1881 was graduated from Renasselaer Polytechnic Institute.
Mr. Cabot conducted explorations in Northern Labrador, where he lived with and studied the Nascapi Indians. Later he published a book on his explorations. In recent years he made a study of Indian place names in New England and collected material which will be published later.
After returning from the West Mr. Cabot became a partner in the firm of Holbrook, Cabot & Rollins, civil engineers and contractors. He retired from business in 1908.
He was a member of the Boone and Crockett Club and the Explorers Club of New York, the National Geographic Society and the Royal Geographic Society of London.
Surviving are a son, Norman Cabot of Providence, R.I., and three daughters, Mrs. Anna L. Coolidge of Sandwich, N.H.; Mrs. Eleanor Lane and Mrs Mary C. Macy, both of New York.