STATISTICS OF OBSERVATIONS. 



93 



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 3 hours previous to these observations, sterile water being substituted 

 for food at the next time of feeding. 



3 Last feeding was about 9 hours previous to these observations. Sterile water was given in 

 place of food at subsequent times of feeding. 



