
100 STORRS AGRICULTURAL EXPERIMENT STATION. 
was measured. ‘The total water produced was 12,264 grams, 
and 12,379 grams, or 100.9* per cent. was found by analysis. 
The total heat given off was 64,5 54 calories and that measured 
64,513 calories, or 99.9 per cent. This agreement between the 
theoretical values and those actually obtained is very close and 
indicates that the apparatus is an instrument of precision. 
SCOPE AND PLAN OF THE INVESTIGATIONS. 
Between February 1896 and April 1900 inclusive, thirty-four 
experiments, covering a period of one hundred and fourteen 
days, were made with the respiration calorimeter. The first 
four of these, covering a period of twenty-one days, were desig- 
nated as Nos. 1-4, and the results were published in a previous 
Report of this Station. Nine of the twelve days covered by 
Experiment No. 4, however, really comprised three separate 
experiments distinguished from each other by difference in 
occupation of the subject; these for convenience may be desig- 
nated as 4a, 4b, and 4c. In all these experiments (Nos. I—4C) 
the income and outgo of nitrogen and carbon and the income 
of energy were determined, but the heat given off from the body 
was not measured. Since they show only the balance of income 
and outgo of matter they are therefore termed “‘ respiration ”’ 
experiments. 
The results of six other experiments, Nos. 5—i0, covering a 
period of twenty-four days, have also been published.= In 
these and all later experiments the balance of income and outgo 
of both matter and energy was determined, and they are there- 
fore termed ‘‘respiration calorimeter’’ or ‘‘metabolism’’ experi- 
ments. 
Of the remaining twenty-four experiments, thirteen, covering 
a period of forty-one days, are reported in detail in a bulletin 
of the Office of Experiment Stations of the U. 5. Department 
of Agriculture now in press; the results of the other eleven 
experiments, covering a period of twenty-eight days, which do 
* Of this excess of water, amounting to nine one-thousandths of the theoretical 
amount, a part at least may be accounted for by a small leak in a valve through 
which the air current passed. This source of error, though carefully sought, was 
not discovered until it had evidently influenced a number of the experiments. 
+ Report Storrs Exp. Sta. 1896 p. 85. See also U. S. Dept. Agr., Office of Experiment 
Stations, Bul. 44. 
1U.S. Dept. Agr., Office of Experiment Stations, Buls. 63 and 69, and /Rept. Storrs 
Exp. Sta. 1897 p. 212. f 
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