FIRE ENGINEERING A Consolidation of FIRE AND WATER ENGINEERING, THE FIRE ENGINEER and FIRE PROTECTION The Journal of the Fire Protection Profession Since 1877 FRED SHEPPERD Editor N. N. WOLPERT, Assistant Editor. Member Audit Bureau of Circulations Associated Bualneia Papers SUBSCRIPTION PRICE U. S. and Canada, $2 a year; Foreign, $3; Single Copies, 25c. Published the tenth of each month by CASE – SHEPPERD – MANN PUBLISHING CORPORATION Also publishers of “Water Works Engineering” and “Municipal Sanitation” General Offices—24 West 40th Street, New York KARL M. MANN President I. HERBERT CASE Vice-Pres. and General Manager 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. 1939, by the Case-Shepperd-Mann Publishing Corporation.