Our members have recently received, as a gift from the Business Historical Society, the Harvard Co-operative Society, and the author, a copy of Harvard Co-operative Society, Past and Present, 1882-1942, by Professor N. S. B. Gras. The book was written to make known the facts of the Co-operative Society's experience as a business enterprise. It will no doubt have interest to many beyond the officers, directors, and members of the Harvard Co-operative Society as a record of an experience of over sixty years of cooperative business effort. The book reveals how thin is the line dividing the so-called co-operative and the ordinary private business unit.