New edition of standards of A. I. E. E.

A new edition of the Standards of the American Institute of Electrical Engineers has just been issued. In this 1922 revision of the Rules are incorporated changes and additions the scope of which is outlined below. The Standards, comprising approximately 180 pages are bound in flexible leather covers. The price is $2.00 per copy, with 20 per cent discount to A. I. E. E. members, dealers and purchasers of ten or more copies. Address all orders to Secretary A. I. E. E., 33 West 39th St., New York.