Different methods of purifying water.
By: By P. A. Maignen ... Read before the Engineers' club of Philadelphia, November 17, 1906.
Publisher: n.p.
Published: 1907
Place of publication: [Philadelphia
Language: eng
Number of pages: 69
Subjects: Water, Purification of
Notes: Cover-title.
"Authorized reprint from vol. XXIV, no. 1 (Jaunary, 1907), of the copy-righted Proceedings of the Engineers' club of Philadelphia."