FERTILIZERS AND AGRICULTURAL LIME 23 



AGRICULTURAL LIME PRODUCTS 



Manufacturers and Brands 



During 1946, 13 firms registered for sale in Massachusetts 24 brands of lime 

 products, manufactured and sold for neutralizing acid soils. The products are 

 grouped as follows: 



Hj'drated or slaked lime 15 



Pulverized and ground limestone 9 



24 



The analytical results which appear in this bulletin represent officially drawn 

 samples secured by the same sampling agents who drew the samples of commercial 

 fertilizer which served for the inspection of that commodity; the samples there- 

 fore came from every section of the state and are, we believe, representative of 

 the lime products sold in Massachusetts as soil amendments. 



We were not successful in securing samples of the following brands: 



Brewer & Co., Inc., 45 Arctic St., Worcester, Mass. 



Gieen Mountain Handy Hydrate 

 Snow Fluff Agricultural Hydrate 

 Sure Crop Agricultural Lime Hyd'ate 



Eastern States Farmers' Exchange, West Springfield, Mass. 

 Agricultural Hydrated Lime 



Clifford L. Milter, West Stockbridge, Mass. 



MonarQue Pulverized Limestone 



D. U. Smitli & Brc, Asliley Falls. Mass. 



Ashley White Agricultural Limestone Dolomite ' 



Explanation of Table of Analyses 



Tables I, II, III, "Neutralizing value expressed in terms of calcium oxide" 

 represents the acid neutralizing value of both the magnesium and the calcium. 

 The figures in the "per cent" column are obtained by a direct titration with 

 standard acid. The "pounds in one ton" are secured by multiplying the figures 

 in the "per cent" column by 20. 



"Insoluble matter" represents material which is insoluble in dilute hydrochloric 

 acid to which a few drops of nitric acid have been added, and is mainly sand. 



Under "Mechanical analysis" the figures represent in round numbers the 

 percentage of product that would pass or be retained by the meshed sieves men- 

 tioned. 



The limestone products have been published in two groups or grades (see 

 tables II and III) according to fineness of grinding and to conform to definitions 

 voted by the Association of Official Agricultural Chemists at their 1936 meeting. 



