1862.] 101 



Over the dorsum of the thumb, carpus, and forearm the sensibi- 

 lity was slightly improved. 



Buttoning could be performed with difficulty. The fingers, the 

 carpus, and the forearm could now be placed in a straight line. 

 Abduction of the thumb, which on the right side forms an angle of 

 90, on the left can be made to an angle of 45. 



February 12, 8 A.M. :-- Left side. Right side. 



Cent. Cent. 



Temperature between thumb and index at roots. 3T9 327 



between index and median 31 '7 32'3 



between median and annular .... 31 '8 32'4 



between annular and little finger. . 31 '1 32'0 



of palm of the hand when closed. . 30'2 34'0 



over lower part of forearm 30*0 31*3 



The hand felt stronger and the movements were more free. But- 

 toning was effected more easily. Extension of the left hand back- 

 ward as free as that of the right while the fingers were semiflexed, 

 but not when they were extended. 



February 13 : Left side< Ri & ht side - 



Cent. Cent. 



Temperature between thumb and index at roots. 24- 3 27*8 



between index and median 23*5 24*3 



,, between median and annular .... 26*0 25*0 



between annular and little finger. .26*7 26*8 



over dorsum of thumb 27'5 30'0 



over dorsum of index 25*3 25*9 



over dorsum of lower part of forearm 26*5 28'3 



over dorsum of upper part of forearm 31*0 31*8 



Left hand felt much stronger. Left thumb could be placed in 

 abduction at an angle of 60 with the index. 



On the following days the sensibility of the skin continued gra- 

 dually to improve, and also the motor powers, and after the lapse of 

 twelve days from the date of the experiment there existed no differ- 

 ence in the sensibility, motor power, and the temperature of the 

 two hands. 



Compression of the Right Median Nerve. 



January 2, 11 A.M. The arm was allowed to hang over the 

 back of a chair so as to compress the median nerve and brachial 



