DEPARTMENT OF CHEMISTRY. 



J. B. LiNDSEY, Chemist. 



INSPECTION OF LIME PRODUCTS USED IN AGRI- 

 CULTURE FOR THE SEASON OF 1921. 



BY H. D. HASKINS, CHEMIST IN CHAKGE, ASSISTED BY L. S. WALKER AND 

 RAYMOND W. SWIFT. 



MANUFACTURERS AND BRANDS. 



During the season of 1921, 22 different companies secured registration certificates 

 for the sale of 29 different brands of agricultural lime and 2 brands of gypsum or land 

 plaster. The following classification indicates the character of these products: — 



Caustic lime, .............. 1 



Hydrated or slaked lime, ............ 15 



Lime ashes, .............. 2 



Precipitated lime, ............. 1 



Ground limestone, ............. 9 



Ground shell lime, ............. 1 



Total 29 



Gypsum or land plaster, ............ 2 



With the exception of 3 samples of agricultural lime and 1 of gypsum, representa- 

 tive samples of all of the products registered have been secured and analyzed, and 

 the results appear in the tables of analyses, arranged alphabetically according to 

 manufacturer's name and brand name. 



Products not collected. 



Edward Bryant Co., 23 Central St., Boston, Mass. 



Tolman Agricultural Lime. 



Tolman Lime Ashes. 

 F. E. Conley Stone Co., Utica, N. Y. 



Raw Ground Lime. 

 J. B. King & Co., 17 State St., New York, N. Y. 



King's Nova Scotia Land Plaster. 



