92 [May 15, 



oe completely extended. The spot to which the freezing mixture 

 was applied is still sore, and the ulnar nerve immediately under it 

 very sensitive. 



The following observations were made on the temperature of both 

 upper extremities : 

 Right (unaffected) side. Left (paralysed) side. 



28-6 Cent, (radial side of second finger) 26-6. . diff. 2 



24*7 (after some minutes' exposure to cold air) 22' 7. . diff. 2 



34-3 (at bend of arm) 337. . diff. -6 



33-4 (at middle of inner side of arm) 33'6. . diff. + '2 



Right forearm. Left forearm. 



Radial side. Ulnar side. Radial side. Ulnar side. 



31'4 29'l..diff. 2-3. 31 28'6..diff. 2'4 



After some minutes' exposure to cold air, the temperature of the 

 little fingers of both hands sunk to 



Right side. Left side. 



(1) 22-1 207.. diff. 1 -4 



(2) 21'4 197.. diff. 17 



(3) 21-5 197.. diff. 1-8 



Both arms were then well exercised ; as the result of which the 

 temperature rose in successive observations to 



These observations show : 



(1) That the mean difference of temperature between the para- 

 lysed and sound arms was 2 Cent.=3'6 Fahr. 



(2) That this difference lessened as the temperature of both arms 

 was lowered. 



(3) That the temperature of the sound side was at first increased 

 much more rapidly than that of the side paralysed, but that after a 

 short time the normal difference 2 was re-established. 



September 27th. The power of motion in the little finger is 



