136 



ON RESPIRATION. 



Another. 



Another. 



Another. 



Another. 



Several mice 

 .suffocated in 

 n i t rogen. 



Mouse suffo- 



quicksilver, containing 1-62 cubic inch of oxigen nearly- 

 pure, after 50 minutes it had diminished 0-19 of a cubic inch. 

 The gas being then exposed to caustic potash only 0*31 of a 

 cubic inch were absorbed. 



14 April, Temp. 46°, P. 29*30. 



Exp. 8. Another was placed in the same situation in I'lO 

 cubic inch of oxigen gas. When nearly dead it was with- 

 drawn, and the air found to have decreased 0*40 of a cubic 

 inch. The remainder being submitted to caustic potash,. 

 0'30 of a cubic inch more were taken up, leaving a residue 

 of only 0*40 of a cubic inch. 



15 April, Temp. 45°, P. 29*30. 



Exp. 9. Another was placed in the same situation for 50 

 minutes in 2*40 cubic inches of oxigen. When the mouse was 

 in, the scale indicated 3'05. At the expiration of the above 

 time it was reduced to 2'80. The decrease would doubtless 

 have been more, but for the casual introduction of some at- 

 mospheric air. 



19 April, Temp. 42°, P. 29*80. 



Exp. 10. Another placed in the same situation in 1 cu- 

 bic inch, or 100 parts of oxigen, 29 parts were absorbed. 

 The remaining 71 parts exposed to lime water lost 20 parts 

 more, leaving only 51 parts. 



20 April, Temp. 48°, P. 29'60. 



Exp, 11. A mouse was passed up ajar in the same man- 

 ner into 3'10 cubic inches of oxigen gas. At the expira- 

 tion of 50 minutes the air had decreased to 2*30, which 

 being exposed to caustic potash, 1*60 were absorbed. 



Exp. 12. Several mice having been suffocated in 4 cubic 

 inches of nitrogen gas, upon trial with lime water it became 

 turbid, and 4 per cent were absorbed. 



Exp. 13. A mouse having been suffocated in hidrogen 



cated in hidro- „ ag ou examination hi lime water a trace also of carbouic 

 **n. ft ' J _ 



acid gas could be perceived. 



24 June, 



