436 Keport of the Assistant Chemist of the 
lyzed, while the per cent of albuminoids,* according to the same author- 
ity, averages for America 12.15. For New York we find 11.80 per 
cent, but only approximate comparisons can now be made until a 
larger number of wheats have been analyzed, for in albuminoids the 
two wheats examined show a wide variation, and although grown in the 
same locality, but upon different soils, we cannot say whether this vari- 
ation is due to difference in variety and soil or to meteorological influ- 
ences, since they were grown in different years, for it has been shown 
that both may influence to a considerable extent the composition and 
physical properties of wheat. 
Two-thirds of the nitrogen of the grain remains as a part of the 
flour, but of the mineral elements, phosphates, potash, etc., the larger 
proportion is left in the by-products, which are used as animal feeds, 
only about one-fifth of the phosphates being in the flour, the largest 
part being in the bran. 
The high coefficient of digestibility for the by-products from flour 
production renders them a most valuable source of animal feed, and 
at the same time so concentrated and rich are they in those elements 
necessary to a fertile soil that they become when properly managed a 
valuable source of fertilizers. From the foregoing we find that the 
milling products from ojie bushel of wheat having a composition like 
our sample would contain the following amounts of fertilizing matter, 
expressed in pounds: 
Nitrogen. 
Phosphoric 
acid. 
p 2 o 5 . 
Potash. 
K 2 O. 
Lime. 
CaO. 
Flour 
Middlings 
Shipstuff 
Totals 
.739 
.105 
.056 
.228 
.092 
.064 
.044 
.251 
.054 
.024 
.021 
.083 
.013 
.002 
.003 
.012 
1.118 
.454 
.182 
.030 
* Agricultural Science, Vol. I, No. 6, p. 126. 
