208 



Report of the Chemist op the 



In the following tabulated statement we give the composition 

 of the different kinds of incomplete fertilizers included in our 

 year's collection: 



An examination of the foregoing tables shows that commercial 

 fertilizers, both complete and incomplete, have an average com- 

 position exceeding the guaranteed composition. In some special 

 cases there were marked deficiencies. One sample called " pure 

 dried blood " was guaranteed to contain only 4.95 per cent of 

 nitrogen and was found to contain less than four per cent. How 

 serious this case was, we realize when we remember that good 

 dried blood should contain 10 per cent or more of nitrogen. 



