1a STORRS AGRICULTURAL EXPERIMENT STATION. 
the most economical methods of feeding cattle, horses, sheep, 
swine, and other animals according as growth, fattening, milk, 
or work is demanded, has been very rapid. Only those who 
are familiar with the subject realize how large an amount of 
experimenting has been done during this time in Europe, and, 
of late, in the United States. Nor can any intelligent student 
of the subject doubt fora moment that the results are worth 
many times the cost, great as the latter has been. We are now 
coming to a time when the common ways of experimenting do 
not suffice to meet the demands of either the physiologist or 
the farmer for more accurate knowledge. It is becoming nec- 
essary to provide for experiments which shall show with the 
greatest possible accuracy just how food is used in the animal 
body, and what are the specific effects, not only of different 
food materials, but especially of the different nutritive ingredi- 
ents in the nourishment of animals of different kinds and under 
different conditions. The most useful inquiry in this direction 
has been carried out with a so-called respiration apparatus, of 
which numerous forms have been used in experiment stations 
and university laboratories in Europe. This is an apparatus 
by the use of which the chemical elements and compounds of 
the income and outgo of the body are carefully measured. For 
the most satisfactory results still further measurements of the 
amounts of energy received by the body in the latent force of food 
and given off by the body as heat, external muscular work, or 
otherwise, are needed. An apparatus for the study of the 
metabolism of both matter and energy has been in the process 
of development for several years at Wesleyan University with 
the cooperation of the Station, and, lately, with that of the 
United States Department of Agriculture. The results obtained 
have more than fulfilled the expectations at the outset. The 
actual experiments thus far have been made with men, but 
plans are under consideration for extending the inquiries so as 
to include experiments with domestic animals. | 
FOOD AND NUTRITION OF MAN. 
As there is room for the improvement in the economy of 
feeding of farm animals so there is even more demand for 
improvement in the food and nutrition of men, women, and 
children. By as much as man is of more importance than the 
