P RANZ, Sensations Folloiving Nerve Division. 



229 



The area near the wrist gave similar results, although in the ex- 

 periments of this region I did not map out the area according to 

 squares and have to oflfer only the general results on the horizontal 

 areas. In this case, however, I was careful to keep the temperature 

 of stimulation constant for each area, and each time the stimulus 

 was applied it was of the intensity noted on the diagram. The 

 results of these experiments are shown in Fig. 5. Five dif- 



-5°C. 



lOX, 



20X. 





Fig. 5. 

 Fig. 5. — Skin area 011 ulnar aspect of forearm near wrist. Area A, no 

 pressure sensations felt. Areas B and C pressures felt and protopatliic sen- 

 sibilitj' retained. Areas D and E. pressures and touch appreciated and epicritic 

 sensibility intact. For explanations of sensations of temperature, see legend 

 to Fis. 4. 



ferent degrees of the stimulus were chosen, — 5°, 10°, 20°, 40° and 

 60° C. The coldest stimulus felt cold in areas D and E, cool in 

 area C. A temperature of 10° C. felt cold in areas D and E, but 

 did not call forth a sensation of temperature when placed on area C. 

 20° C. was reported cool in areas D and E, but was indifferent 

 in the other areas. Stimuli of 40° C. were felt warm in areas C, 

 D and E, but indifferent in areas A and B. In area C the subject 



