65 
r 4. — Record of carbon dioxid in ventilating air current- 
Xos. 23 and 24. 
Metabolism experiments 
Period. 
(a) 
Ventila- 
tion 
(number 
of liters 
of air). 
Carbon dioxid 
(h) 
In incoming 
air. 
(d) 
In out- 
going 
air. 
(0 
Total 
excess 
in out- 
going 
air, 
d-c. 
(/) 
Correc- 
tion for 
amount 
remain- 
ing in 
chamber. 
(g) 
Cor- 
rected 
amount 
exhaled 
by sub- 
ject, 
e+f. 
Total 
weight 
Date. 
(&) 
Per 
liter. 
(c) 
Total, 
axb 
of car- 
bon ex- 
haled, 
<7X T \. 
1899. 
Experiment No. 23. 
Liter)-. 
Mg. 
Grains. 
Grams. 
Grams. 
Grams. 
Grams. 
Grams. 
Mar. 16-17 
7 a.m. to 1 p. m ... 
24. 857 
0.700 
17.4 
234. 9 
217. 5 
4-19.8 
237. 3 
64.7 
1 p.m. to 7 p. m... 
20.329 
.706 
18.6 
245.9 
227. 3 
- 3.4 
223. 9 
61.1 
7 p. m to 1 a.m. .. 
27, 749 
.609 
16.9 
233. 3 
216. 4 
-11.1 
205. 3 
56.0 
1 a.m. to 7 a.m... 
Total 
7 a. m. to 1 p. m .. 
27, 618 
.567 
15.7 
151.3 
135. 6 
- 4.6 
131.0 
35.7 
106, 553 

68.6 
865. 4 
796.8 
4- .7 
797. 5 
217. 5 
17-18 
27, 110 
.566 
15.4 
236. 3 
220.9 
+ 14.7 
235. 6 
64. 2 
1 p.m. to 7 p.m. .. 
26, 569 
.556 
14.8 
232. S 
218. 
- 3.6 
214.4 
58.5 
7 p.m. to 1 a.m .. 
28, 339 
. 582 
16.5 
225. 7 
209. 2 
- 9.6 
199.6 
54.4 
1 a. m. to 7 a. m .. 
Total 
7 a. m. to 1 p. m .. 
28, 209 
16.6 
152. 1 
135. 5 
- 1.7 
133.8 
36.5 
110. 227 
63.3 
846.9 
783. 6 
- .2 
783.4 
213. 6 
18-19 
26, 108 
.566 
14.8 
248. 3 
233. 5 
+20. 
253. 5 
69.1 
1 p. m to 7 p. m . . 
26, 608 
.548 
14.6 
227.4 
212. S 
- 2.9 
209. 9 
57.2 
7 p.m. to 1 a.m . 
27. 694 
.577 
16.0 
235. 9 
219. 9 
-14.8 
205.1 
55.9 
1 a.m. to 7 a. m. . 
Total 
Total. 3 days 
Experiment No. 2U. 
27, 572 
.578 
15.9 
148.7 
132.8 
- .9 
131.9 
36.0 
107, 982 
61.3 
860. 3 
799.0 
+ 1.4 
800.4 
218. 2 
324, 762 
193. 2 
2.572.6 
2, 379. 4 
+ 1.9 
2.381.3 
649.3 
19-20 
7 a.m. to 1 p.m .. 
27, 538 
.580 
16.0 
241.6 
225. 6 
+13.9 
239. 5 
65.3 
1 p.m. to 7 p.m .. 
27.829 
.557 
15.5 
243. 3 
227. 8 
- 5.4 
222. 4 
60.6 
7 p. m. to 1 a. m . . 
27. 889 
. 655 
18.2 
248.6 
230. 4 
- 8.3 
222. 1 
60.6 
1 a.m. to 7 a.m 
Total 
7 a. m. to 1 p. m .. 
27, 385 
.639 
17.5 
153.7 
136. 2 
- 1.2 
137.4 
37.5 
110, 641 
67.2 
887. 2 
820. 
+ 1.4 
821.4 
224. 
20-21 
26, 295 
.564 
14.8 
256. 4 
241. 6 
+ 17.8 
259. 4 
70.7 
1 p. m. to 7 p. m . . 
26, 624 
.572 
15.2 
251.0 
235. 8 
- 7.0 
228. 8 
62.4 
7 p.m. to 1 a.m .. 
27, 671 
.601 
16.6 
237.5 
220. 9 
- 9.5 
211.4 
57.6 
1 a. m. to 7 a. m .. 
• Total 
7 a.m. to 1 p.m .. 
27, 938 
.549 
15.3 
159. 9 
144.6 
- 5.0 
139.6 
38.1 
108, 528 

61.9 
904.8 
842. 9 
-3.7 
839.2 
228.8 
21-22 
26, 162 
.609 
15.9 
249.4 
233. 5 
+17.1 
250. 6 
68.3 
1 p.m. to 7 p.m... 
26, 049 
.582 
15.1 
243. 4 
228. 3 
+ 3.2 
231. 5 
63.1 
7 p.m. to 1 a. m .. 
27. 71S 
.575 
15.9 
277.7 
261.8 
-17.9 
243.9 
66.5 
1 a.m. to 7 a.m .. 
Total 
Total. 3 .lays 
27, 370 
.571 
15.6 
165.2 
149.6 
+ 3.9 
153.5 
41.9 
107, 299 
62.5 
935.7 
873. 2 
+ 6.3 
879.5 
239. 8 
326, 468 
191.6 
2, 727. 7 
2,536.1 
+ 1.0 
2,540.1 
692. 6 
13007— No. 109—02- 
