CH. LI.] 



TACTILE CORPUSCLES. 



697 



its axis cylinder branches, and the branches after either a straight 

 or convoluted course terminate within the corpuscle. 



fig. 515. Summit of a Pacinian corpuscle of the human finger, showing the endothelial 

 membranes lining the capsules, x 220. (Klein and Noble Smith.) 



The corpuscles of Grandry (fig. 5 1 9) form another variety, 

 and have been noticed in the beaks and tongues of birds. They 



Fig. 516. A corpuscle of Herbst, from Fig. 517. End-bulb of Krause. a, me- 

 the tongue of a duck, a, medullated dullated nerve-fibre ; b, capsule of 



nerve cut away. (Klein.) corpuscle. 



consist of oval or spherical cells, two or more of which compressed 

 vertically are contained within a delicate nucleated sheath. The 



