New York AGRICULTURAL EXPERIMENT STATION. 63 
oat chop No. 542 have in them but little starch, these being nearly 
pure oat offals. 
These facts are in harmony with the outcome of digestion ex- 
periments, from which we learn that the nitrogen-free extract 
of the whole grains is much more digestible than that of most of 
the manufacturing wastes which come from them, as can be seen 
by the figures in the right hand column of the above table. 
Some ‘mixed feeds” apparently are compounded and 
advertised on the assumption that feeding stuffs are to be compared 
in value solely on the basis of their percentage of protein and fat. 
This is a false basis. The quality of the accompanying carbo- 
hydrates must always be considered. For instance it would not 
be difficult to simulate the composition of corn meal or of wheat 
middlings by mixing oat hulls with some of the old style linseed 
meal, adding a little crushed linseed to make up the deficiency of 
fat. But would the mixture equal corn meal in value? By no 
means. In one case the protein and fat would be associated with 
woody fiber in large proportion, and in the other case with litle 
else than starch. The net value of the corn meal would be much 
above that of the mixture as measured by the extent and labor 
of digestion. 
It is quite clear to the writer that those teachers who publish 
tables or estimates of feeding stuff comparative values based wholly 
upon the protein content are misleading the agricultural public 
and furnishing to manufacturers a justification for false claims. 
The relation of oat offals to one class of feeding stuffs has been 
discussed somewhat at length, because it is proper for farmers to 
understand its significance. They have a right to know the 
nature and value of what they are buying, a statement to which 
no legitimate trade interest will take exception. 
MISCELLANEOUS FEEDING STUFFS. 
The succeeding table gives the analyses of a number of materials 
of some interest. 
