AMOUNT OF NITROGEN IN THE FOOD. 



403 



their composition that they cannot fulfil the same objects as the 

 true albuminous substances. 



The following table gives the results of those investigations of 

 Horsford which were at the same time directed to the elucidation 

 of the amount of ash and sulphur contained in vegetable food : 



The numbers of the non-nitrogenous substances, given in the 

 fifth column, refer not only to the starch, but include, in addition 

 to this, the cellulose, wax, or fat, &c. ; and hence it was important 

 to determine directly the starch contained in these substances. 

 Krocker made determinations of this kind, which yielded the follow- 

 ing numbers for every 100 parts of the dried substance : 



Pure starch from beans ... 

 Wheat-flour, No. 1 

 No. 2 

 No. 3 



Tal aver a wheat ... 

 Whittington wheat 

 Sandomier wheat 

 Rye-meal, No. 1 ... 

 No. 2 ... 

 No. 3 ... 

 Rye (Staudenroggcn) 



" (Schilfroggcn) 

 Meadow oats 



2 D 2 



