Franz, Sensations folloirnig Nrrvc Division. 



1^5 



where these fingers join the pahn, Longitndinally the pains seemed 

 to extend ahont three qnarters of an inch, bnt, as said al)()ve, no very 

 aeenrate localization can be made. In addition, heat (test tube 

 with water heated to 45° C.) did not produce a sensation over the 

 area insensitive to light tonch and over half of the nalmar part of 



Fig. 4. — ILiiid sliowiiig areas insensitive to pressure, to li,i,'lit toneli and to 

 temperatures. 



the thumb. Cold was not ap])reciated over tlie same area, although 

 the test tube was cooled to 0^ 0., but there seemed to be a dissociation 

 of the areas concerned with hot and cold sensations, for on the thumb, 

 with the exception of the tip, no hot sensations were evoked, although 

 cold was properly appreciated over the thiunb with the exception 

 of the first joint. Fig. 4 illnstrates this condition. 



