Specification of Gustav Alsing : treating night soil, &c.

  • Alsing, Gustav.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Gustav Alsing : treating night soil, &c. Source: Wellcome Collection.

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    2 A.D. 1872.—N° 3412. Provisional Specification1. Alsing’s Improvements in Treating Night Soil, fyc. commonly called gypsum or plaster of Paris, in a given proportion. This proportion I find to be generally about one part of the gypsum to three parts of the above named night soil, sewage, or refuse matter. But inasmuch as it greatly depends on the state of the said night soil, sewage, or other refuse matter whether it contains more or less water, it 5 will be necessary to add more or less of the said gypsum or plaster of Paris, which by a few trials easily can be ascertained, and I do not therefore confine myself to the above proportion of the mixture. Other ingredients combined with the above said gypsum, such as cements, unslacked lime, or other minerals and substances may be used 10 for the herein-before named purpose, but I prefer the use of gypsum by itself. LONDON: Printed by George Edward Eyre and William Spottiswoode,