74 



THE COMPOSITION OF EXPIRED AIK. 

 NOS. 20-28. BrOWN-S6QUARU EXPFK'\'^M■ 



Commenced at 2.30 p.m., April 25, 1894 ; ended at June 5, 1894. Mice in 7-litre bell jars. 



5 in series. 



i81 •• 



26* '• 



A3i ■■ 



49* " 



68 '• 



75 



9. J •• 



93 " 



No. I. 7 g. No. 2, 15 g. No. 3, 18 g. 

 O. CO,. O. I CO.. O. 



No. 4. 25 g. 



CO.. O. 



No. 5, ig g. 



CO.. O. 



Remarks. 



9 litres aspirated. Current con- 



I tinued. 



87.5 litres aspirated. .All com- 



I fortahle. 



94.5 litres aspirated. All 

 slightly oppressed. Current 

 increased. 



139.5 liti'ts aspirated. All de- 

 pressed. Current reduced. 



147 litres aspirated. Consid- 

 erably depressed. Current 

 increased. 



324.5 litres aspirated. All 



I lively. Current reduced. 



332 litres aspirated. Current 

 continued. 

 + a 355 I'ffs aspirated. No. 5 

 died ; No. 4 greatly de- 



j pressed. 



357 litres aspirated. Experi- 



I ment stopped ; all soon re- 

 vived. 



Continued as Experiment 21, afier intermission of two days. May i, 1S94. 



4ilirs. 



193 " ' 

 28i " 



44 " 



5*4-' 



68 " ^ 



i 

 72 " 



Fresh mouse in No. 5. 



26 litres aspirated. All lively. 

 I Current reduced. 



145.5 litres aspirated. Current 

 the same. 



160 litres aspirated. Current 

 increased, showing depres- 

 sion. 



341.5 litres aspirated. All 

 lively again. Current re- 

 duced. 



351.5 litres aspirated. De- 

 pressed. Current increased. 



459 litres aspirated. All more 

 comfortable. Current re- 

 duced. 



466.5 litres aspirated. Experi- 

 ment stopped. 



