Analysis of the Human Breath, 



117 



Table X. — Dry air and carbonic acid gas. 











Absorption 



20 inches of 

 first, gave 



dry air, admitted! 



Deflection. 

 . 0°0 



per 100. 

 00 



1*2 inch of carbonic acid 





. . 34-5 



51-0 



1-5 



)> 





. . 35-5 



53-4 



2-0 



)> 





. 370 



57-3 



Total heat 







. 47-5 



100-0 



20 inches of dry air 





. 00 



o-o 



1 inch of carbonic acid 





. 31-5 



48-4 



1*1 „ 



)) 





. . 32-1 



49-4 



1-2 „ 



)) 





. . 32-7 



50-7 



1-3 „ 



)3 





. 33-2 



52-0 



1-4 „ 



)) 





. 33-6 



52-9 



1-5 „ 



)i 





. 33-9 



53-5 



2*0 inches 



)} 





. 35 



56-1 



5-0 „ 



)) ' 





. 37-8 



64-0 



Total heat 







: 46-0 



1000 



I next tried to determine the absorption by carbonic acid at 

 lower pressures than one inch, but found that when the gas was 

 added to the air in the tube, it required to obtain a certain ten- 

 sion before absorption became manifest. Although one-tenth of 

 an inch of gas can be easily measured when added to one or two 

 inches of carbonic acid already in the tube, yet one, two, or 

 even three tenths, when admitted into an exhausted tube, show 

 scarcely an appreciable absorption. 



Table XI. — Dry air and carbonic acid gas. 



Deflection. Absorption 









o 



per 100 



21 inches of d 



ry air first , . 



o-o 



o-o 



01 inch 



of carbonic acid . . 



05 



0-7 



0-2 



)> 



)> 



0-5 



07 



03 



)) 



>> 



05 



0-7 



05 



>> 



a 



215 



321 



1-0 



}> 



)) 



32-3 



48-2 



1-2 



)} 



)> 



33-2 



50-4 



1-3 



)> 



)) 



334 



50-9 



1-4 



}> 



39 



33-8 



51-8 



1-7 



>> 



33 



350 



54-5 



2*0 inches „ 



33 



35-9 



56-8 



Remaining 7 



inches of dry air 



36-0 



57-0 



Total heat 



• ••••• 



46-6 



100-0 



