Nature 99, 447-448 (02 August 1917) | doi:10.1038/099447a0

Indian Saltpetre1



THE brochure before us, issued by the Agricultural Research Institute, Pusa, is the work of the Imperial Agricultural Bacteriologist, and is an interesting and valuable account of an important village industry, which, as is well known, has long been carried on in various districts of India where the factors determining the formation of potassium nitrate, as a soil constituent, are sufficiently favourable. These factors, as summarised by the author, are:—