STATISTICS OF OBSERVATIONS. 



91 



Table 23. — Results of observations on the gaseous exchange of infants — Continued. 

 [I, Very quiet, probably asleep; II, Slight movements, few in number; III, Some activity, but 

 generally quiet; IV, Moderately active; V, Distinctly active; VI, Very active, most or 

 all of the time.] 



'Calculated from the weight of carbon dioxide produced during the period. The preliminary 

 periods for all days are omitted in computing the minimum metabolism. See table 31, p. 142. 



2 Last feeding was about 9 hours previous to these observations. Sterile water was substituted 

 for food at subsequent times of feeding. 



3 Last feeding was about 21 hours previous to these observations. Sterile water was substi- 

 tuted for food at subsequent times of feeding. 



4 On June 23 and 24 the last feeding was about 3 hours previous to the observations, sterile 

 water being given in place of food at the next time of feeding. 



5 Last feeding was about 3 hours previous to these observations. Sterile water being given 

 in the place of food at the next time of feeding. 



