Il6 ^Journal of Comparative Neurology and Psychology. 



Movement sensations were tested as follows: The eyes of the 

 patient were closed or turned away so that he did not see what was 

 being done. The left Avrist was moved in the four possible directions 

 and he properly duplicated these mo^-ements with his right wrist. 

 Similar experiments on flexion and extension were made with the 

 thumb, forefinger and second finger and similar results obtained. 

 When, ho^ve^'er, the ring and little finger were moved the patient gave 

 no indication of the movement of these parts. ]\[oreover, when the 

 thumb and fingers were moved together so as to make a fist, the 

 patient moved only the thumb and the first and middle fingers of 

 the right hand. It was evident, therefore, that the jxatient had no 

 sensations of movement from the little and ring fing(n-s. Voluntary 

 movement of the fingers of the left hand were poorly executed. 

 The thumb could be moved only slightly, and this principally in 

 flexion. The forefinger and middle finger also could be slightly 

 flexed, while the third and fourth fingers could not be moved to the 

 slightest degrees. J^o voluntary power to flex or to extend the wrist 

 could be found. During the next ten days at times poorly localized, 

 rather radiating, pains were felt over the ring and little fingers 

 and on the back and outer aspect of the hand, i^o pain was felt 

 on pressure of the fingers, nor on movement of the individual fingers. 

 Pain, but slight, was felt on j)assive extensor movements of the 

 wrist, but none on adduction and abduction. Pain at elbow on 

 extension. During this period the subject complained of tingling 

 sensations extending from the hand to the elbow, at times this 

 pain was so severe that it prevented sleep. The flexion at the wrist 

 was about 45°, extension about 20°. Flexion at elbow almost to the 

 limit, extension about 150°. Very slight voluntary flexion of the 

 first, second, and third fingers, but none of the fourth finger. A 

 week later movement of the first and second fingers and thumb were 

 properly sensed, movements of ring finger were sensed as movements, 

 but patient could not tell which finger was being moved. ISTo sensa- 

 tions from movements of the fourth finger. Side to side movements 

 of the middle finger were sensed, but in attempting to duplicate 

 them on the right side they were always made in the opposite direc- 

 tion, although the similar movements of the first finger and thumb 



