Physical properties of sands and gravels with reference to their use in filtration. (Appendix III.)
Hunter. Engineering, 1892, vol. 53, p. 621.
Description of author’s sand-washing apparatus.
Kirkwood. Filtration of River-waters. New York, 1869.
A report upon European filters for the St. Louis Water Board in 1866. Contains a full account of thirteen filtration-works visited by the author, and of a number of filter-galleries, with a project for filters for St. Louis. This project was never executed, but the report is a wonderful work which appeared a generation before the American public was able to appreciate it. It was translated into German, and the German edition was widely circulated and known.
Koch. Zeitschrift für Hygiene, 1893.
Water-filtration and Cholera: a discussion of the Hamburg epidemic of 1892 in reference to the effect of filtration.
Kröhnke. Journal für Gas- und Wasserversorgung, 1893, p. 513.
An account of experiments made at Hamburg, as a result of which the author recommends the addition of cuprous chloride to the water before filtration to secure greater bacterial efficiency.
Kümmel. Journal für Gas- und Wasserversorgung, 1877, p. 452.