GORDON MCKAY PROFESSOR OF CIVIL ENGINEERING IN HARVARD UNIVERSITY; PAST-PRESIDENT, AM. SOC. C. E.; FORMERLY CHAIRMAN OF THE BOSTON TRANSIT COMMISSION; CONSULTING ENGINEER
FIRST EDITION FOURTEENTH IMPRESSION TOTAL ISSUE, 45,000
McGRAW-HILL BOOK COMPANY, INC. NEW YORK: 370 SEVENTH AVENUE LONDON: 6 & 8 BOUVERIE ST., E. C. 4 1917
COPYRIGHT, 1917, BY THE McGRAW-HILL BOOK COMPANY, INC. PRINTED IN THE UNITED STATES OF AMERICA