CHAS. A. SWEETLAND Consulting Public Accountant. Author of "Loose-Leaf Bookkeeping," and "Anti-Confusion Business Methods." E. C. LANDIS Of the System Department, Burroughs Adding Machine Company. _Editor-in-Chief_, Textbook Department, American School of Correspondence. CECIL B. SMEETON, F. I. A. Public Accountant and Auditor. President, Incorporated Accountants' Society of Illinois. Fellow, Institute of Accounts, New York. JOHN A. CHAMBERLAIN, A. B., LL. B. Of the Cleveland Bar. Lecturer on Suretyship, Western Reserve Law School. Author of "Principles of Business Law." HUGH WRIGHT Auditor, Westlake Construction Company. GLENN M. HOBBS, Ph. D. Secretary, American School of Correspondence. JESSIE M. SHEPHERD, A. B. Associate Editor, Textbook Department, American School of Correspondence. GEORGE C. RUSSELL Systematizer. Formerly Manager, System Department, Elliott-Fisher Company. OSCAR E. PERRIGO, M. E. Specialist in Industrial Organization. Author of "Machine-Shop Economics and Systems," etc. DARWIN S. HATCH, B. S. Assistant Editor, Textbook Department, American School of Correspondence. CHAS. E. HATHAWAY Cost Expert. Chief Accountant, Fore River Shipbuilding Co. CHAS. WILBUR LEIGH, B. S. Associate Professor of Mathematics, Armour Institute of Technology. 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_.