vi Contents. 



Page. 

 Discussion of results Continued. 



Changes in body-weight Continued. 

 Insensible perspiration Continued. 



Insensible perspiration in connection with metabolism experi- 

 ments 113 



Method of obtaining insensible loss by calculation 113 



Fluctuations in the insensible loss 115 



Average insensible loss per hour during rest 116 



Nature of the insensible perspiration 116 



Body-temperature H" 



Factors influencing body-temperature 118 



Topographical variations in body-temperature 118 



Methods of obtaining body-temperature 119 



Value of body-temperature measurements in metabolism ex- 

 periments and data collected 120 



Body-temperature measurements with clinical thermometer 120 



Body-temperature measurements with a rectal thermometer 121 



In experiments with food 122 



In experiments without food 122 



During waking hours in short experiments 123 



Normal body-temperature 123 



Daily range and fluctuation in range from day to day 124 



Variations in average body-temperature from day to day 126 



Definition of normal body-temperature 127 



Pulse-rate 127 



Factors influencing pulse-rate 128 



Methods of counting pulse-rate 128 



Pulse-rate in experiments 129 



In experiments without food 129 



In experiments with food 131 



Comparison of pulse-rate in experiments with food and without 



food 133 



Comparison of pulse-rate as determined by different methods. . . . 134 



Pulse-rate as index of metabolism 135 



Water vaporized from lungs and skin 136 



Earlier investigations 136 



Experiments on the water vaporized from lungs and skin 138 



Method used and accuracy of determinations 138 



Water vaporized during waking hours 140 



Water vaporized during sleep 142 



Comparison with other investigations on water vaporized 



during sleep 143 



Relative amounts of water vaporized from the lungs and skin. . . . 144 



Method of computation 144 



Apportionment to lungs and skin during waking hours 146 



Apportionment to lungs and skin during sleep 147 



Ratio of water vaporized during sleep to water vaporized during 



waking hours 148 



Carbon-dioxide elimination 149 



Earlier investigations 149 



Experiments on carbon-dioxide elimination 161 



Carbon-dioxide elimination during sleep 161 



Comparison with other investigations on carbon-dioxide elim- 

 ination during sleep 163 



Influence of previous muscular activity upon the carbon- 

 dioxide elimination during sleep 166 



Minimum elimination of carbon dioxide during sleep 169 



Carbon-dioxide elimination during waking hours 170 



Ratio of carbon-dioxide elimination during sleep to that during 



waking hours 172 



Conclusions with regard to the elimination of carbon dioxide. . . . 173 



