78 



THE COMPOSITION OF EXPIRED AIK. 



No. 30. Brown-Si^quard Experiment. 

 Commenced at 1.15 p.m., June 13, 1894. Guinea-piKS in 7-litre bell jars. 5 in series. 



No. I. 



No. 



No. 4. 



No. 5. 



Time. 



139 



'48.1 



163I 

 171I 



1 87 J 



•94? 



2, ,2 



^35J 



+ 

 Wt. 555 



+ 



+ 



Remarks. 



I \Vl. 172 g. \Vt. 185 g. , \Vt. 197 g. SVt. 275 g. VVt. 2B7 g. 



Nos. 4 and 5 are oppressed. Cur- 

 rent 24 litres per hour. 



No. 5 dead. (Ireat negative pres- 

 sure. Fresh air sup])lied, and 

 No. 5 replaced by a fresh guinea- 

 pig. Experiment continued. 



60 litres per hour ; all arc lively. 



Animals fed ; bell jars cleaned. 

 Animals replaced. 



Animals fed ; all well and dry ; 

 60 litres per hour. 



Again fed ; all lively and dry in 

 bottom of cages. 



30 litres per hour; Nos. 4 and 5 

 oppressed ; animals fed. 



80 litres per hour ; animals fed. 



80 litres per hour ; cages cleaned ; 

 animals fed. 



40 litres per hour ; animals fed ; 

 all oppressed. 



50 litres per hour ; animals fed. 



50 litres ])er hour ; animals fed. 



■15 litres per hour ; animals fed. 



No. I dead of oedema of lungs ; 

 experiment continued with 4 

 animals. 



No. 3 died in night of oedema of 

 lungs. Experiment continued. 



Nos. 2, 4, and 5 living, but much 

 oppressed. Experiment stopped. 



Experiment lasted 9 days and 20 hours. No. 5 died three days after close of experiment. No autopsy. 



I 



