ANALYSES OF FODDERS AND FEEDING STUFES. 273 
ANALYSES OF FODDERS AND FEEDING SAMOP IESE 

REPORTED BY W. O. ATWATER AND F. G. BENEDICT. 

In connection with the work of the Station during the year, 
analyses of the following miscellaneous feeding stuffs have 
been made by the Station chemists. Most of the analyses 
were made in connection with feeding experiments or experi- 
ments upon the growth of plants. In no case were they 
undertaken merely to increase the amount of data of this’ class. 
The method of analysis were those recommended by the Asso- 
ciation of Official Agricultural Chemists. 
The results of the analyses as calculated to water content at 
harvest or at the time of analyses are given in table 73, page 
280, which follows the description of samples. In this table 
the materials are grouped somewhat according to their water 
content at time of taking samples, as follows: Green fodders; 
silage; cured hay and fodder; grain; and milling products. 
This order is also observed in the description of samples. 
The results calculated to water-free substance (dry matter ) 
as the basis are given in table 74, page 284. 
The fuel value of a pound of each of the feeding stuffs as 
given in the tables was obtained by multiplying the number of 
hundredths of a pound of protein and of carbohydrates by 
18.6, and the number of hundredths of a pound of fat by 42.2, 
and taking the sum of these three products as the number of 
calories of potential energy in the materials. 
The heats of combustion of the majority of the specimens 
were also made with the bomb calorimeter. The results of a 
large number of these determinations have been given in the 
tabular statements included in the accounts of feeding and 
digestion experiments with sheep. A compilation of the work 
of the Station in this field is now being made for publication. 
There are two sets of averages given in tables 73 and 74 
beyond: the first is the average of the samples analyzed during 
the past year; the second is the average of all analyses of 
similar foods made up to the present time in this laboratory. 
