16 



GASEOUS METABOLISM OF INFANTS. 



with a normal and an atrophic infant, neither being breast-fed. This 

 study was carried out on the same plan as that used for the former 

 experiment. The "normal" infant weighed 7.57 kilograms, was 1\ 

 months old, and appeared to be in good health. She was fed on milk 

 and milk sugar and throughout the observation was said to be in 

 general "recht ruhig" The results were compared with those obtained 

 with the breast-fed infant in the previous experiment, the hourly excre- 

 tion of carbon dioxide per square meter of body-surface being but 13.5 

 grams for the breast-fed infant, which weighed but 5 kilograms, and 

 17.3 grams for the artificially fed infant, which weighed 7.6 kilograms. 



Table 4. — Results of experiments with a normal infant and an atrophic infant. 

 (Rubner and Heubner). 



The second portion of the paper deals with the metabolism of the 

 atrophic infant, artificially fed with cow's milk and "Kindermehl." 

 Their results are given in table 4. The authors conclude that there was 

 nothing abnormal in the metabolism of the atrophic infant. 



Table 5. — Results of experiments on the respiratory exchange of atrophic infants (Poppi). 



The first extensive study exclusively with atrophic infants was 

 made by Poppi. 1 A respiration apparatus of the closed-circuit type 

 was probably used, as both the carbon-dioxide production and the 

 oxygen consumption were measured, though little is said of the method. 

 An abstract of the results obtai ned with 7 infants is given in table 5. 



^oppi, II ricambio materiale e il ricambio respiratorio nell'atrofia infantile, Bologna, 1900. 



