NET AVAILABLE ENERGY—MAINTENANCE. 421 
Metabolizable 
Energy of Food, Toss By Body, 
‘als. als, 
Food, Grms. 
Experiment I: 
Nothing ................. 0 147.4 
Rhamnose, 11.584 grms.... 45.3 114.0 
NOUhIN® -scoc since sarees 0 113.3 
Experiment II : 
Nothing ................. 0 180.7 
Rhamnose, 17.09 grms..... 66.8 111.6 
IN OGIINE terete 9 setssssehe Sc ace 0 184.8 
Experiment III : 
Nothing ................. 0 129.1 
Rhamnose, 18.96 grms..... 74.1 54.3 
Nothing: oa siadsd sone cane 0 113.1 
fe (av’ge of two days) 0 113.4 
Experiment IV : 
Nothing ................. 0 146.0 
Opal! Ta tN Basta Oeste aaa 0 141.4 
Rhamnose, 18.66 grms....... 72.9 53.3 
a ey: Se eee 22.0 98.1 
* The total amount of rhamnose (24.3 grms.) was given on the first day, 
but it is estimated from the results for the carbon excretion that this amount 
of it was not metabolized until the second day. 
The results as to net availability obtained by comparison with 
the several fasting days vary considerably, as the following state- 
ment shows, several of them exceeding 100 per cent.: 
Experiment I. 
Compared with first day................... 74 per cent. 
- SETI Cay ce: sesste a ere sp eects Negative 
: Experiment II. 
Compared with first day ...............6. 103 per cent. 
ds $6 Eh Gay 6 sar heal ene sie sd eestelass 110 “ “ 
Experiment IIT. 
Compared with first day.............00085 101 per cent. 
nf  thitd (ay awe te gwie essa ge « 
Second and third with fourth and fifth days. 80 “ “ 
Experiment IV. 
Third compared with second day. ..... .... 121 per cent. 
iB 8 “ fourth day .......... 88 “ 
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