132 
than drink. How the amounts of water in food and drink in these 
experiments would compare with those in the average diet in general 
it is impossible to say for lack of sufficient data. The average daily 
amount of water in food and drink together in the rest experiments 
was for E. O. 2,444 grams, for A. W. S. 2,275 grams, and for J. F. S. 
1,888 grams. In the work experiments with E. O. it was 2,771 grams, 
and with J. F. S. 2,225 grams. 
The amount of urine excreted per day in the rest experiments aver- 
aged with E. O. 1,878 grams, containing 1,810 grams of water; with 
A. W. S. 1,798 grams, containing 1,743 grams of water, and with 
J. F. S. 1,266 grams, containing 1,219 grams of water. The average 
for the 45 days of the rest experiments with the three subjects was 
1,750 grams of urine, containing 1,687 grams of water. In the work 
experiments the amount of urine excreted averaged with E. O. 1,081 
grams, containing 1,011 grams of water, and with J. F. S. 961 grams, 
containing 905 grams of water. The average for the 20 days of work 
experiments with both subjects was 1,009 grams of urine, containing 
947 grams of water. 
The variations in the amounts excreted from day to day in experi- 
ments of the same kind with the same man were very wide. Thus in 
the rest experiments with E. O. the urine fell on one day to 1,091 
grams, with 1,037 grams of water, while on another day it rose to 3,208 
grams with 3,120 grams of water. It is to be observed that these 
experiments were made at different times during a period of two 
years, and covered in all 33 days. In the rest experiments with 
A. W. S.,on the other hand, there is but one experiment, covering 
3 days. Although the quantities of water in the food and drink 
were almost exactly the same from day to day, the quantities of urine 
and water in the urine were irregular, the range being from 1,681 
grams of urine, with 1,628 grams of water, to 1,965 grams, with 1,909 
grams of water. In the rest experiments with J. F. S. the quantities 
ranged from 975 grams of urine, containing 913 grams of water, to 
1,551 grams of urine, containing 1,489 grams of water. These extremes 
occurred respectively on the first and third days of the first experi- 
ment with this subject. 
In the work experiments with E. O., made at intervals of over a 
} T ear, the water of food and drink ranged from 2,151 to 3,079 grams 
per da} 7 . There were corresponding variations in the amount of urine 
and of water in the urine, though the range was not wide, the mini- 
mum amount of urine being 879 grams, with 815 grams of water, and 
the maximum 1,350 grams, with 1,275 grams of water. In the work 
experiments with J. F. S., which were made at short intervals during 
the same year, the water of food and drink ranged from 2,166 to 
2,286 grams, and the variation in the amount of urine per dsij was 
from 695 grams of urine, containing 641 grams of water, to 1,488 
grams of urine, containing 1,433 grams of water. 
