1906.] 



Increased Barometric Pressure on Man. 



27 



B.* From Admiralty Diver C. 



Depth. 



Time below and N 2 per cent, found. 



N 2 per cent, calcu- 

 lated, supposing 

 urine followed 

 the pressure. 



80 feet 



Below 46 mins. 20 sees. Ascended in 6 mins. 5 sees. — 

 Sample taken 20 mins. 30 sees, after ascent : 

 N 2 = 173 



1 -1 

 1-1 



1-1 



1-1 



1-1 

 1-1 



84 „ 



Below 46 mins. Ascended in 5 mins. — 



Sample taken 11 mins. after ascent : N 2 = 1'60 



72 „ 



Below 44 mins. Ascended in 6 mins. — 



Sample taken 5 mins. after ascent : N* — 2'11 



80 „ 



20 „ „ N~ 9 = 103 



Below 46 mins. Ascended in 4| mins. — 



Sample taken 4 mins. after ascent : N 2 — 2*50 



20^ „ „ N 9 = 1-38 





For these samples we are indebted to Dr. Haldane, Lieutenant Damant, and Mr. Cato. 



The experiments were carried out with the help of a Government Eoyal 

 ■Society Grant, and with the aid of apparatus placed at our use by Messrs. 

 Siebe, Gorman and Co. 



