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Article
August 7, 1926

NETHERLANDS

JAMA. 1926;87(6):425-426. doi:10.1001/jama.1926.02680060049017

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Abstract

Work Colonies for the Tuberculous  The Netherlands society "Zonnestraal" (sunbeam) established recently at Hilversum the first work colony on a rural tract. The society has been given a free lease of this property by the association of diamond cutters.

The Purification of Residual Waters  A Netherlands institute for the purification of residual waters has been experimenting with the waste waters from the cardboard factories at Groningen. Each week, 116,400 cubic meters of residual waters was diverted into the canals in the vicinity of Groningen. A septic ditch was constructed, with eight gas reservoirs, into which part of the residual waters from the factory was allowed to flow. A complete laboratory was established in connection with each of the septic ditches. Fuel for the laboratory apparatus and for the building itself was assured by gas collected in the septic ditches. The results were very satisfactory and another station in a similar

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