INGESTION OF CARBOHYDRATES. 



183 



periods, this being in conformity with the increase in the carbon- 

 dioxide production. The abnormal values for the oxygen consumption 

 in part explain the high respiratory quotients, which are, in two in- 

 stances, 1.19 and 1.16. In all probability there was an error in the 

 measurement of the oxygen consumption. 



.4. H. A/., March 28, 1907. The results obtained after the subject 

 had taken 307 grams of the maltose-dextrose mixture, with an energy 

 value of 927 calories, are given in table 106. During the four 2-hour 

 periods there was the usual noticeable increase in the carbon-dioxide 

 production, a total increase of 15 grams in the oxygen consumption, 

 and in every period an increase in the heat production, although the 

 increase in the latter factor was but slight in the fourth period. The 

 general picture points towards a distinct increase in the metabolism 

 after the ingestion of the maltose-dextrose mixture. The respiratory 

 quotients were high, as would be expected; the last value is undoubt- 

 edly erroneous. 



TABLE 106. A. H. M., March 28, 1907. Sitting. (2-hour periods.) 



Maltose-dextrose mixture: 1 



Amount, 307 grams; energy, 927 cals.; from carbohydrates, 100 p. ct. 

 Basal values (March 6 and 9, 1907) : CO2, 51 grams; Oo, 46 grams; heat, 164 cals. 



Subject took maltose-dextrose mixture, together with 144 grams water, in 17 minutes. 

 2 Heat eliminated corrected for change in body-weight, but not for change in body-temperature. 

 'Sample included amount for about 2 hours preceding taking of maltose-dextrose mixture. 



A. L. L., May 13, 1907.- The subject took 299 grams of the mal- 

 tose-dextrose mixture with an energy value of 902 calories. Accord- 

 ing to the data in table 107, the carbon-dioxide production increased 

 considerably in the first three periods, but practically no increment was 

 found in the oxygen consumption. A distinct increase in the heat pro- 

 duction may be noted in the first two periods ; the values in the last two 

 periods were irregular, but on the average there was clearly an incre- 

 ment in the last 4 hours. The respiratory quotients were extraordi- 

 narily high, this being due in part to the increment in the carbon- 

 dioxide production and in part to the absence of increment in the 

 ox}rgen consumption. The values for the oxygen consumption, which 

 show a definite decrease in the last three periods, are obviously wrong. 



