NATURAL & ARTIFICIAL

SEWAGE TREATMENT

BY

LIEUT.-COL. ALFRED S. JONES, V.C.

ASSOC. M. INST. C.E., FELLOW AND MEMBER OF COUNCIL
OF THE SANITARY INSTITUTE, ETC.

AND

H. ALFRED ROECHLING

M. INST. C.E., F.G.S., FELLOW OF THE SANITARY INSTITUTE, ETC.

London