THE·FOVNTAIN·OF·ELISHA·NEAR·JERICHO,·PALESTINE·
From Stereograph, copyright 1899 by Underwood & Underwood, N. Y.
(See page [iv])
CHAPTER IX
Synopsis of Chapter. Introduction of Water Filters—Striking Example of their Efficiency and Value—Cholera at Altona and Hamburg—Purification of Sewage—The Automatic Scavenger of Mouras—Investigations of the Massachusetts State Board of Health—Garbage Destruction.