JOSEPH RACE, F.I.C.
Reading edition
City Bacteriologist and Chemist, Ottawa; Capt. Canadian Army Hydrological Corps; Associate Member of Committee on Water Supplies, American Public Health Association; Member of Committee on Water Standards and Standard Methods of Analysis, American Water Works Association; Chairman of Committee on Standard Methods of Analysis, Canadian Public Health Association
FIRST EDITION
NEW YORK JOHN WILEY & SONS, Inc. London: CHAPMAN & HALL, Limited 1918
Copyright, 1918 BY JOSEPH RACE, F.I.C.
PRESS OF BRAUNWORTH & CO. BOOK MANUFACTURERS BROOKLYN, N. Y.
DEDICATED TO Sir Alexander Houston, K.B.E., D.Sc., M.B., C.M.