176 



COMPARISONS OF RESPIRATORY EXCHANGE. 



TABLE 27. Respiratory exchange in comparison experiments with mouth-breathing and 

 nose-breathing Benedict respiration apparatus (tension-equalizer unit). (Without 

 food.) Continued. 



Subject, date, method, 

 and time. 



T. M. C. Continued. 

 Nov. 14, 1910 Continued. 



Mouthpiece: c.c. 



Il h 59 m a, m 194 



12 25 p. m 174 



12 51 p. m 171 



Average 180 



H. F. T. 

 June 27, 1911: 



Pneumatic nosepieces: 



8 h 57 m a. m 170 



9 45 a. m 178 



10 46 a. m 160 



11 41 a. m 167 



Average 169 



Mouthpiece: 



l h Ol m p. m 190 



1 50 p. m 175 



2 56 p. m 175 



Average 1 80 



Sept. 8, 1911: 



Pneumatic nosepieces: 



8 h 51 m a. m 168 



9 24 a. m 154 



9 57 a. m 156 



Average 159 



Mouthpiece: 



Il h 12 m a. m 163 



11 34 a. m 166 



11 56 a. m 152 



12 23 p. m 144 



Average 156 



Sept. 9, 1911: 

 Mouthpiece: 



8 h 50 m a. m 176 



9 15 a. m 157 



9 50 a. m 162 



10 22 a. m 164 



Average 165 



Pneumatic nosepieces: 



Il h 21 m a. m 159 



11 46 a. m 148 



12 16 p. m 152 



Average 153 



K. H. A. 

 Sept. 2.3, 1911: 



Pneumatic nosepieces: 



8 h 50 m a. m 206 



9 19 a. m 196 



9 48 a, m 206 



10 14 a. m 193 



Average 200 



Carbon 



dioxide 



eliminated 



per minute. 



Oxygen 



absorbed 



per minute. 



c.c. 



187 

 185 

 183 

 185 



199 

 198 

 209 

 198 

 201 



203 

 196 

 201 

 200 



176 

 176 



176 

 176 



176 

 184 

 176 

 181 

 179 



192 

 207 

 195 

 190 

 196 



198 

 177 



185 



187 



264 



242 

 258 

 248 

 253 



Respira- 

 tory 

 quotient. 



Averag e 

 pulse- 

 rate. 



1.040 



0.940 



.930 



.975 



.855 

 .900 

 .765 

 .845 

 .840 



.935 

 .895 

 .870 

 .900 



.955 



.875 

 .890 

 .905 



.925 

 .900 

 .865 

 .795 



.870 



.915 

 .760 

 .835 

 .865 

 .840 



.805 

 .835 

 .820 

 .820 



.780 

 .810 



.800 

 .780 

 .750 



75.0 

 76.5 

 76.0 

 76. 



49.0 

 47.5 

 46.5 

 47.5 

 47.5 



45.0 

 46.5 

 47.0 

 46.0 



44.5 

 42.5 

 42.5 

 48.0 



42.0 

 42.0 

 42.0 

 43.0 



42.5 



45.0 

 47.0 

 46.5 

 47.0 

 46.6 



47.0 

 47.0 

 47.5 



47.0 



Average 

 respira- 

 tion- 

 rate. 



58.0 

 53.5 



55.0 

 54.0 

 55.0 



15.4 

 15.5 

 13.9 

 14.9 



11.4 

 11.4 

 11.3 

 11.3 



15.1 

 15.1 



12.8 

 14.3 



8.9 

 8.4 

 8.6 

 8.6 



10.6 

 10.0 

 10.5 

 10.0 

 10. 3 



11.0 

 9.9 

 10.9 

 10.2 

 10.5 



10.1 

 10.1 

 10.5 



10.2 



14.8 

 14.6 

 14.8 

 14.8 

 14.8 



