THE SIX GATEWA YS OF KNOWLEDGE. 299 



glass against the finger is a balanced force or 

 whether they be far asunder and obviously 

 balanced by the muscles of the two arms, the 

 thing perceived is the same in kind. Anatomists 

 do not show us muscles balancing the individual 

 forces experienced by the small areas of the 

 finger itself when we touch a piece of smooth 

 glass, or the individual forces in the scores or 

 hundreds of little areas, experienced when we 

 touch a piece of rough sugar or rough sandstone ; 

 and perhaps it is not by muscles smaller than the 

 muscles of the finger as a whole that the multi- 

 tudinousness is dealt with ; or perhaps, on the 

 other hand, these nerves and tissues are con- 

 tinuous in their qualities with muscles. I go 

 beyond the range of my subject whenever I speak 

 of muscles and nerves ; but externally the sense 

 of touch other than heat is the same in all cases 

 it is a sense of forces and of places of application 

 of forces and of directions of forces. I hope now 

 I have justified the sixth sense ; and that I have 

 not taxed your patience unduly in not having 

 done it in fewer words. 



