1895.] 



PUBLIC DOCUMENT — No. 33. 



295 



used was buckwheat. The results were as follows (expressed 

 in weight of total crop in grams ) : — 



* Immature when harvested. 



Storer says : "It will be seen plainly enough that, while 

 neither the sheepskin nor the sole-leather supplied any ni- 

 trogenous food to the buckwheat plants, some nitrogen was 

 unquestionably olitained by the plants from the roasted 

 leathers, a little from the roasted sheepskin and a decidedly 

 larger amount from the roasted sole-leather. ... In all 

 cases the light, bulky material tended to interfere with the 

 growth of the plants. The roasted-leather jars exhibited a 

 marked growth of fungus, the raw-leather jars showed none, 

 corroborating the evidence as to the existence of available 

 products in the roasted leather. There is but little in the 



