156 REPORT OF THE COMMISSIONER OF AGRICULTURE. 
incorrect in the amount of sugar (11.64 per cent.), in the amount solu- 
blein cold water (16.28 per cent.), and in the entire omission of this amy- 
laceous matter. 
It will be seen again that one effect of crossing has been to make the 
amount of soluble starch in Golden sugar corn considerably less than 
in the ordinary varieties of sweet corn. 
4, The much greater amount of oil in sweet corn is noticeable. 
Chemical analysis seems to give no clew as to the reason why pop- 
corn should “ pop” when heated. The amount of albuminoid matter is 
higher and starch is lower than in other kinds of corn; in other respects 
the difference is not strongly marked. 
A noticeable difference between winter and spring wheats 1s seen in 
the greater content of albuminoid matter in spring wheat; the starch is 
in equal measure diminished, while all the other constituents are practi- 
cally the same. 
It would be obviously premature to enter into very extensive general- 
izations based upon the results of comparatively a few analyses, but it is 
contemplated to continue these analyses of our cereals and grasses; and 
that those desiring to use the data furnished by the analyses given may 
rely upon the results with confidence, in so far as the methods made use 
of in analysis were reliable, it may be added that in every case where rea- 
sonable doubt existed as to the accuracy of any determination through 
any excess or deficiency of any constituent comparatively, such determi- 
nation has been made in duplicate or triplicate when thought advisa- 
ble. In other cases where a normal amount of any constituent was 
found present a single determination has sufficed generally. 
It is greatly to be desired that before long more liberal provision may 
be made, both in laboratory facilities and working force, for the vast 
amount of chemical work pressing upon this division, which, as the re- 
port will show, has been requested to carry through chemical investi- 
gations for nearly every department of the government, and which re- 
quires for even the work exclusively its own, fully ten times the force at 
present assigned it by law. 
Respectfully submitted. 
PETER COLLIER, 
Chemist, 
To Hon. WitL1AM G. LEDUC, 
Commissioner of Agriculture. 
