Abstract :
The two hundred and sixty-first meeting of the American Institute of Electrical Engineers will be held in the auditorium of the Engineers´ Building, 33 West 39th Street, New York City, on Friday, April 14, 1911, at 8 p.m. The following papers will be presented: “The Effect of Temperature Upon the Hysteresis Loss in Sheet Steel”, by Malcolm MacLaren, professor of Electrical engineering, Princeton University, and “Commercial Testing of Sheet Steel for Hysteresis Loss”, by L. T. Robinson, engineer, General Electric Company, Sehenectady, N. Y.