FIRE ENGINEERING A Consolidation of FIRE AND WATER ENGINEERING, THE FIRE ENGINEER and FIRE PROTECTION FRED SHEPPERD Editor N. N. WOLPERT, Assistant Editor. The Journal of the Fire Protection Profession Since 1877 —MEMBER— Audit Bureau of Circulation Associated Business Papers Published the tenth of each month by CASE-SHEPPERD-MANN PUBLISHING CORPORATION Also publishers of “Water Works Engineering” and “Sewage Works Engineering” General Offices—24 West 40th Street, New York, U. S. A. KARL M. MANN I. HERBERT CASE President Vice-Pres. and General Manager SUBSCRIPTION PRICE U. S., $2 a year; Canada, $2:50; Foreign, $3; Single Copies, 25c ALFRED J. HOUGHTON, Eastern Representative; H. S. ESSEX. Production Manager CHICAGO: 6 N. Michigan Ave.—W. S. CLEVENGER, L. M. ROCHE; SAN FRANCISCO: 444 Market ST.—CHARLES H. WOOLLEY, H. N. HARNER Contents of this issue copyrighted, 1940, by the Case-Shepperd-Mann Publishing Corporation.