WATER CONTENT AND RATE OF METABOLISM 
161 
experiments with starved grasshoppers also show striking results. 
Figure 6, taken from typical cases, shows the effect of feeding 
animals sprouted oats after periods of starvation, varying from 
48 to 120 hours. 
It is evident, from figure 6, that feeding increases the CO2 
output of starved animals. Some variations in extent of response 
TABLE 6 
Showing the actual CO2 per one-half hour and the rate of CO2 output per gram per 
hour, during starvation, for Melanoplus differentialis. Figures in italics repre- 
senting CO2 in grams per gram total body weight per hour 
WEIGHT 
OF 
ANIMAL 
grams 
2.0500 
1.0100 
1.8995 
0.8995 
0.7795 
2.1200 
0.9&45 
1.9100 
1.0798 
1.2148 
cT 
d" 
& 
d" 
c? 
cT 
0.0006270 
0.0006116 
0.0006380 
0.0012360 
0.0008030 
0.0008^54 
0.0007810 
0.0017360 
0.0006490 
0.0016650 
0.0010340 
0.00097 5 J^ 
0.0006600 
0.0013680 
0.0013970 
0.0014620 
0.0007040 
0.0013030 
0.0006160 
0.0010140 
STARVATION PERIOD 
24 hours 
.0004840 
.0005792 
,0005390 
0011170 
0007590 
0008116 
0006160 
0015020 
0004840 
0014560 
0010070 
0010410 
0006600 
0016290 
0010010 
0013080 
0007920 
0014940 
0006380 
0011650 
48 hours 
0005940 
0006172 
0007260 
0015120 
0008140 
0009170 
0005170 
0012840 
0004840 
0013450 
0009790 
0010300 
0006446 
0015720 
0008860 
0011220 
0007100 
0013930 
0008200 
0016750 
72 hours 
0006600 
0006760 
0004620 
0009150 
0006160 
0007468 
0004840 
0012100 
0004180 
0012030 
0007040 
0007650 
0004620 
0011840 
00G6600 
0009040 
0006600 
0013400 
0006820 
0013640 
hours 
0004510 
0004832 
0005830 
0011770 
0005610 
0007216 
0003366 
0008634 
0002486 
0007106 
0005940 
0006562 
0003740 
0009906 
0003300 
0006970 
0005280 
OOO6OO4 
0005500 
0010420 
120 hours 
TEM- 
PERA- 
TURE 
0.0004400 
0.0004730 
0.0005940 
0.0012310 
0.000704C 
0.0007645 
0.0006270 
0.0007130 
0.0003300 
0.0006740 
0.0005280 
0.0010770 
21 
21 
21 
22 
22 
23 
21 
21 
