Carbon-Dioxide Elimination. 



159 



Eecently Johansson ' studied a series of 10 young men and 2 women, deter- 

 mining the carbon-dioxide production in the Stockholm chamber 12 hours after 

 the last meal with unusual muscular rest. The results which are given in table 

 66 herewith have an especial interest here, since the experiments were made 

 with subjects of the same age and body-weight as many of those studied by us. 



Table 66. Carbon-dioxide elimination of subjects 

 in experiments reported by Johansson. 



During the past decade a number of researches have been carried out in the 

 Hygienic Institute in Berlin under Eubner's direction. The most important of 

 these for purposes of comparison in this report are as follows : 



In a number of experiments on a well-nourished subject weighing 71 kilos, 

 at a temperature of 17.4 C, the average carbon-dioxide production was 32.1 

 grams per hour. 2 



With another subject, H., weighing 58 kilos and well nourished, the carbon- 

 dioxide production at 20 to 23 C. averaged 29 grams per hour. 8 



Wolpert, working in Eubner's laboratory, found with a subject weighing 58 

 kilos, at a temperature of 15 to 25 C, an average of 24.6 grams of carbon 

 dioxide per hour. 



Laschtschenko, 4 also working in Eubner's laboratory, found with a subject 

 weighing 70 kilos that the hourly carbon-dioxide production at 17 to 19 C. 

 in 6 experiments was 27.69, 23.84, 26.64, 26.68, 23.32, and 23.83 grams, 

 respectively. 



Another of Eubner's pupils, Schattenfroh, 5 studying a very fat man weighing 

 95 kilos and 53 years old, found that at 20 C. the carbon-dioxide production 

 varied from 26.7 to 34.5 grams per hour in 4 experiments. 



Johansson, Skand. Archiv f. Physiol., 1908, 21, p. 1. 



2 Rubner, Archiv f. Hygiene, 1900, 38, p. 133; ibid., Die Gesetze des Energiever- 

 brauchs bei der Ernahrung, Leipsic and Vienna, 1902, p. 203. 



3 Rubner, Archiv f. Hygiene, 1897, 29, p. 33. 



4 Laschtschenko, Archiv f. Hygiene, 1898, 33, p. 148. 



5 Schattenfroh, ibid., 1900, 38, p. 108. 



