Chapter L: W. Lewis

Advertising Manager, The McCaskey Register Co.

MARTIN W. RUSSELL Registrar and Treasurer, American School of Correspondence.

HALBERT P. GILLETTE, C. E. Managing Editor, _Engineering─Contracting_. Author of "Handbook of Cost Data for Contractors and Engineers."

R. T. MILLER, JR., A. M., LL. B. President, American School of Correspondence.

WILLIAM SCHUTTE Manager of Advertising, National Cash Register Co.

E. ST. ELMO LEWIS Advertising Manager, Burroughs Adding Machine Company. Author of "The Credit Man and His Work" and "Financial Advertising."

RICHARD T. DANA Consulting Engineer. Chief Engineer, Construction Service Co.

P. H. BOGARDUS Publicity Manager, American School of Correspondence.

WILLIAM G. NICHOLS General Manufacturing Agent for the China Mfg. Co., The Webster Mfg. Co., and the Pembroke Mills. Author of "Cost Finding" and "Cotton Mills."