Note 158 — A CYCLOPÆDIA OF PRACTICAL RECEIPTS, &c. VOLUME II (continued 31)
Reading edition
About the same time carbonisation of sewage in retorts, with or without previous admixture with charcoal, was proposed by Mr Hickey, of Darjeeling. There can be little doubt that, regarded in a purely sanitary point of view, carbonisation of sewage matter is an excellent plan. Mr Hickey proposed the utilisation of the ammoniacal products resulting from his process.