218 STORRS AGRICULTURAL EXPERIMENT STATION. 
inaccurate observations of practices which is more or less erro- 
neous, cannot represent the actual average practice and is still 
farther from indicating what is most profitable in any given case. 
The editorial comments in the Experiment Station Record 
above. referred to include the following opposite statements: 
“The collection of statistics on the practice of feeding may be 
suggestive and useful in its way, but the error should not be made 
of supposing that a standard can be worked out in this manner. 
Thorough systematic feeding experiments by scientific experts 
alone can furnish the proper basis for American feeding stand- 
ards. The experiments should be made in different parts of the 
country and continue through a number of years. They should 
be planned on a system which will make the results properly 
comparable, and the records should be accurately kept. Sum- 
maries of data obtained in this way and of the available data 
which we have now, would be fairly entitled to be called feeding 
standards. These standards would have a real value because 
they would be founded on scientific work and deductions. The 
closeness with which they would be followed by farmers in dif- 
ferent parts of the country would, of course, depend on a number 
of variable conditions, as must be the case with any standard. 
With the further accumulation of feeding experiments, the 
standards would probably have to be somewhat modified and 
perfected.” 
THE PLACE OF THE EXPERIMENTER AND THE PRACTICAL FEEDER. 
Unquestionably the experience of practical feeders, and espe- 
cially the experience of the most successful ones, is of the highest 
value. It is with the aid of such men that the doctrine of suc- 
cessful cattle feeding will be best worked out. The place of the 
chemist and physiologist is rather to explain the theory than to 
lay down rules for the practice of feeding. In developing -his 
theory he will be most successful if he does as the most successful 
teachers, like Liebig, Henneberg, Kiihn and Wolff in Germany, 
and Lawes and Gilbert in England, have done, namely, to make 
as accurate experiments and observations as possible and collate 
and explain their results as accurately and as simply as he can. 
STANDARDS FOR-DIETARIES, 
In framing the standards for daily dietaries for human beings 
the same physiological principles apply as in the standards for 
rations for domestic animals. 

