AND ITS EFFECTS UPON ANIMAL LIFE. 



No. 17. Brown-Si5qu.\ri) Experiment. 

 Commenced at 12 m., A[)iil 11, 1894. Mice in 7-litrc bell jars. 5 in series. 



a. 

 b. 

 c. 

 d. 

 e. 



Fresh house mouse placed in 

 " white " " ' 



No. 5 jar. 



5 " 



5 " 



4 " 



3 " 



Died in two minutes. 

 Lived to end of experiment. 

 Died in half a minute. 

 Died in half an hour. 

 Died in six minutes. 



