Sand filtration of water with special reference to results obtained at Lawrence, Mass.
Gill. Deutsche Bauzeitung, 1881, p. 567.
On American rapid filters. The author shows that they are not to be thought of for Berlin, as they would be more expensive as well as probably less efficient than the usual procedure.
—— Journal für Gas- und Wasserversorgung, 1892, p. 596.
A general account of the extension of the Berlin filters at Müggel. No drawings.
Grahn. Journal für Gas- und Wasserversorgung, 1877, p. 543.
On the filtration of river-waters.
—— Journal für Gas- und Wasserversorgung, 1890, p. 511.
Filters for city water-works.
—— Vierteljahresschrift für Gesundsheitpflege, 1891, p. 76.