Subject No. 13.  April 24, 1906

Subject No. 13.  June 19, 1906

Results of the same general tenor with dogs No. 15 and No. 20 are seen in the appended tables, while the accompanying photographs testify clearly to the general good condition of the animals up to the end of the experiments. In No. 20 particularly, the great gain in body-weight is to be noted, even though the fuel value of the food was reduced as low as 64 calories per kilo, with the nitrogen intake at 0.28 gram per kilo daily. Plainly, the day’s food could have been diminished still more, with perfect safety to both body and nitrogen equilibrium.

SUBJECT No. 15. DAILY AVERAGES

Date.

Body-
weight.

Food.

Output.

Nitro-
gen
Balance
+ or –

Total
Nitro-
gen.

Nitro-
gen per
Kilo
Body-
weight.

Fuel
Value
per Kilo
Body-
weight.

Nitro-
gen
through
Kid-
neys.

Nitro-
gen
through
Excre-
ment.

Nitro-
gen
through
Hair.

1905

kilos

grams

gram

calories

grams

gram

gram

gram

Nov. 5-Nov. 14

9.2

3.35

0.36

82.0

2.95

0.11

0.14

+0.15

Dec. 19-Dec. 28

8.9

2.61

0.30

75.0

2.47

0.12

0.12

–0.10

1906

Jan. 16-Jan. 25

8.7

2.60

0.30

79.9

2.15

0.21

0.16

+0.08

Feb. 13-Feb. 16

8.5

2.61

0.30

82.0

2.37

0.20

0.15

–0.11

Mar. 13-Mar. 22

8.7

2.82

0.32

80.0

2.68

0.17

0.19

–0.22

Apr. 10-Apr. 19

9.0

2.80

0.31

82.0

2.14

0.26

0.09

+0.31

May 8-May 17

9.5

2.83

0.30

75.0

2.26

0.30

0.12

+0.15

June 5-June 14

10.2

2.81

0.27

70.0

2.26

0.28

0.24

+0.03

Subject No. 15.  January 2, 1906