New books

“Who´s Who in Engineering.” This sixth edition of the publication represents approximately 16,000 engineers, a 12 per cent greater coverage than the fifth edition. As in previous editions, those who are included are engineers of outstanding and acknowledged professional eminence, engineers of at least ten year´s active practice (at least five years in charge of important engineering work), or teachers of engineering subjects for at least ten years (at least five years in charge of a major engineering course). Lewis Historical Publishing Company, Inc., New York, N. Y., 2,357 pages, 6¼ by 9¼ inches, $15.