74 



THE ROYAL SOCIETY OF CANADA 



Expt. 



No. 



Temperature 



External 



Inlernal 



16. 



17. 



18. 



34.0°C. 



34.0= 



34.0' 



19. 



34.0° 



34.0°C. 



34.0' 



34.0° 



Dura- 

 tion of 

 expo- 

 sure 



1 hour 



Result 



Fatal 



34.0' 



20. 



33.0° 



21. 



32.6°-33.r 



33.0° 



o -2-2 1 o 



33.0°-33.1 



Not fatal 



Remarks 



No sign of life when re- 

 moved from the ther- 

 mostat. 30 hours later 

 muscles did not respond 

 to stimulation. 



No sign of life when re- 

 moved from the ther- 

 mostat. No recovery 

 after 28 hours. 



No sign of life when re- 

 moved from the ther- 

 mostat. After 15 hours 

 there was no recovery. 

 Muscles responded fairly 

 vigorously to stimulation. 

 On opening the thorax 

 the heart was found to 

 be beating feebly. Ex- 

 posure and stimulation 

 of the brain gave the 

 usual gross responses. 



No sign of life when re- 

 moved from thermostat. 

 No recovery after 12 

 hours. Muscles only re- 

 sponded feebly to stimu- 

 lation. Heart was 

 stopped. Stimulation of 

 brain gave feeble re- 

 sponses from back and 

 forelimbs. 



No sign of life when re- 

 moved from thermostat. 

 No recovery after 96 

 hours. Stimulation of 

 muscles at this time 

 evoked response. 



Animal was unconscious 

 when removed from expt. 

 chamber but an irregular 

 heart beat was visible. 

 Partly recovered in Ij 

 hours. A quarter of an 

 hour later spasmodic 

 movements occurred. Re- 

 covered completely. 



