108 HATCH EXPERIMENT STATION. [Jan. 



Part in. — Compilation of Analyses of Agricultural 

 Chemicals, Refuse Salts, Ashes, Lime Compounds, 

 Refuse Substances, Guanos, Phosphates and Animal 

 Excrements. 



H. D. HA SKINS. 



1. Chemicals, refuse salts, etc. 



2. Ashes, marls, lime compounds, etc. 



3. Refuse substances. 



4. Guanos, phosphates, etc. 



5. Animal excrements, etc. 



G. Average per cents, of the different ingredients found in the 

 preceding compilation of analyses, calculated to pounds per 

 ton of 2,000 pounds. 



1868 to 1901. 



This compilation does not include the analyses made of 

 licensed fertilizers. They are to be found in the reports 

 of the State Inspector of Fertilizers from 1873 to 1895, con- 

 tained in the reports of the secretary of the Massachusetts 

 State Board of Agriculture for these years, and in the bulle- 

 tins of the department of chemistry of the Hatch Experi- 

 ment Station of the Massachusetts Agricultural College 

 since March, 1895. 



No valuation is stated in this compilation, as the basis of 

 valuation changes from year to year. 



In the following compilation of agricultural chemicals, 

 refuse materials, manurial substances, etc., the signification 

 of the star (*) prefixed to the name of the substance is 

 that the compilation is made up of analyses subsequent to 

 the year 1897. It was believed that a compilation made up 

 of more recent analyses would more nearty represent the 

 present general chemical character of the substances, and 

 would therefore be of more practical value. 



