EXPEEIMENT STATION. 



4T 



No. of 

 Analyses. 



H.J.Baker's 3 



Forrester's 6 



Mapes'. 8 



Stockbridge's 1 



Williams, Clark & Go's 1 



H.J.Baker's 4 



Forrester's 7 



Lister's 1 



Mapes' 5 



Stockbridge's 7 



Williams, Clark & Co's 3 



H.J.Baker's 2 



Forrester's 1 



Mapes' 4 



Stockbridge's 2 



H.J.Baker's 1 



Forrester's 5 



Mapes' ] 



Stockbridge's 2 



BoxE Manures. 



Method of Valuation. 



For the benefit of those who have not the previous reports of 

 the Station at hand, a detailed account of the method employed 

 for the valuation of bone manures is here given, being in large 

 part reproduced from former Reports. 



Experience has led us to distinguish, for the purpose of valua- 

 tion, five grades of ground bone, the proportions of which are 

 found by a mechanical analysis, i. e., by passing a weighed sample 

 of the bone through a system of four sieves. These five grades 

 have the dimensions, and during 1883, have had the trade-values 

 below specified, viz : 



* Soluble and reverted. 



