Abstract :
Boston. — January 7, Chipman Hall, Tremont Temple. Illustrated address by Mr. M. Luckiesh on “Camouflage on Land, Sea and Air.” Joint meeting with Boston Section of Illuminating Engineering Society. Attendance 300. Chicago. — December 30, 1918, Western Society Rooms. Address by President Comfort A. Adams on “Electric Welding in Ship Building.” Attendance 325.