Transcriber's Note:
The cover image was created by the transcriber and is placed in the public domain.
A Sub-surface Irrigation Sewage-Disposal Plant.
Sewage. Frontispiece.
Practical Methods of Sewage Disposal
FOR RESIDENCES, HOTELS AND INSTITUTIONS
BY
HENRY N. OGDEN
M. AM. SOC. C.E.
Professor of Sanitary Engineering, Cornell University
AND