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: 



ll h 59" a. m 



12 25 p. m 



12 51 p. m 



Average 



H. F. T. 

 June 27, 1911: 



Pneumatic nosepieces 



8 h 57 m a. m 



9 45 a. m . . . . 



10 46 a. m 



11 41 a. m 



Average 



Mouthpiece: 



l h 01 m p. m 



1 50 p. m 



2 56 p. m 



Average 



Sept. 8, 1911: 



Pneumatic nosepieces 



8 h 51 m a. m 



9 24 a. m 



9 57 a. m . . . . 

 Average 



Mouthpiece: 



ll h 12 m a. m 



11 34 a. m. . . . 



11 56 a. m 



12 23 p. m 



Average 



Sept. 9, 1911: 

 Mouthpiece: 



8 h 50"° a. m 



9 15 a. m . . . . 

 9 50 a. m 



10 22 a. m 



Average 



Pneumatic nosepieces 

 ll h 21 m a. m 



11 46 a. m 



12 16 p. m 



Average 



K. H. A. 



Sept. 23, 1911: 



Pneumatic nosepieces 

 8 h SO"" a. m . . . . 



9 19 a. m 



9 48 a. m 



10 14 a. m 



Average 



Carbon 



dioxide 



eliminated 



per minute. 



c.c. 

 194 

 174 

 171 

 180 



170 

 178 

 160 

 167 

 169 



190 

 175 

 175 



180 



168 

 154 

 156 

 169 



163 

 166 

 152 

 144 



156 



176 

 157 

 162 

 164 

 165 



159 

 148 

 152 

 153 



206 

 196 

 206 

 193 



Oxygen 



absorbed 



per minute. 



c.c. 



187 

 185 

 183 

 185 



199 

 198 

 209 

 198 



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. 



Average 

 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 



.780 

 .810 

 .800 

 .780 

 .790 



75.0 

 76.5 

 76.0 



76.0 



49.0 

 47.5 

 46.5 

 47.5 

 47.5 



45.0 

 46.5 

 47.0 

 46.0 



44.5 

 42.5 

 42.5 

 43.0 



42.0 

 42.0 

 42.0 

 43.0 



42.5 



45.0 

 47.0 

 46.5 

 47.0 

 46.5 



47.0 

 47.0 

 47.5 

 47.0 



58.0 

 53.5 

 55.0 

 54.0 

 65.0 



Average 

 respira- 

 tion- 

 rate. 



15.4 

 15.5 

 13.9 

 14.9 



11.4 

 11.4 

 11.3 

 11.3 



11.4 



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 

 10.6 



10.1 

 10.1 

 10.5 

 10.2 



14.8 

 14.6 

 14.8 

 14.8 

 14.8 



