The Voyage of H.M.S." Challenger". 



Deep Sea Thermometers, PI I. 



Scale H inch 



Fig.l. 



B 



R' 



~> 



Pressure 

 True, a* J>y jlmagat - fhcrizantaZJ 

 6y Styled Law. fvertiealj 



100 



Scale. 



200 



300 



400 



je 2S~i -9} 



