EFFECTS OF CARBON* DIOXIDE. 



219 



50 



100 



minutes exposed 



150 



Kic. 4. At>scissa: Length of exposure in minutes. Onlir. 

 absorlx .1 l.y the animal. (For further description s 



50 



100 



minutes exposed 



150 



1 '!. 5. A ngth of exposure in minutes. < Oi 



absorbed l>y tin- animal. (For further description see to. 



