of Respiration at different Periods of the Day. 407 



indicates 3-81 per cent, of carbonic acid gas, which corrected 

 for tension will be 3-92 per cent. 



(before dinner.) 



.-. loss 6-57 per cent. 



Fourth Interval, from 1 p.m. to 5 

 Jan. 31. at 2 p.m. 144-5 parts of air 



p.m. 



r} 



135- 



3039-55 



.-. 128*81 parts were absorbed by the lime-water, 

 and 3168-36 : 128-81 : : 100 : 4-06 per cent. 



The average therefore of 29 experiments upon the air re- 

 spired between 2 p.m. and Bh p.m., and comprising 8 days, 

 indicates 4-06 percent, of carbonic acid gas, which corrected 

 for tension will be 4"17 per cent. 



Fifth Interval, from 5,] p.m. to 8;^ p.m. (during digestion.) 



Jan. 31st. atS-Jf p.m. 124- iiartsof re-1 ,,,, ^ oac^ i. 



-' • ,1 • 1 > 121- .-. loss 2-42 per cent, 



spired air, became J ' 



Carried forward 124- 2-42 



