THE FILTRATION OF PUBLIC WATER-SUPPLIES.
Reading edition
BY ALLEN HAZEN,
MEMBER OF THE AMERICAN SOCIETY OF CIVIL ENGINEERS, THE BOSTON SOCIETY OF CIVIL ENGINEERS, THE AMERICAN WATER-WORKS ASSOCIATION, THE NEW ENGLAND WATER-WORKS ASSOCIATION, THE AMERICAN CHEMICAL SOCIETY, THE AMERICAN PUBLIC HEALTH ASSOCIATION, ETC.
THIRD EDITION, REVISED AND ENLARGED. SECOND THOUSAND.
NEW YORK: JOHN WILEY & SONS. London: CHAPMAN & HALL, Limited. 1905.
Copyright, 1900, BY ALLEN HAZEN.
ROBERT DRUMMOND, ELECTROTYPER AND PRINTER, NEW YORK.