NO. 23 



INFLUENCE OF ATMOSPHERE ON HEALTH 



63 



Average volume breathed, 8.8 liters per minute. 



Great relief by fans, with much less perspiration. 



At 4.35, C0 2 was let into the chamber and fans were put on for a time to 

 thoroughly mix the atmosphere of the chamber. Soda lime tin was removed 

 and fans put off. 



Average volume breathed, 14.8 liters per minute. Bladder emptied. 



Sample of air taken at 5 o'clock. Analysis: C0 2 3-935 per cent; 2 17.91 

 per cent. 



Series IV. Fans put on and same atmosphere as in last series breathed. 



Average volume breathed, 19.4 liters per minute. Increase 108 per cent. 



