178 THE AMERICAN MONTHLY [June, 



by the fact that the sheath of Henle generally ends at that 

 place, where the fine end fibril widens out to apply itself 

 to the muscle-fibre. 



Figure 2 shows the fine nerve-fibres supplying the 

 muscle-fibres in a way which differs somewhat from that 

 generally described in the books — a modification of nerve 

 supply which is quite common in the muscles of the 

 forearm, the tongue, the eyes. Grenerally, I have found 

 this disposition of the nerves in connection with muscle- 

 bundles that were of uniform and rather small calibre. 



I would call particular attention to muscle-fibres O and 

 ^ because the nerve at 7;^ and n is connected with the 

 muscle without a special end apparatus. That a connec- 

 tion between muscle and nerve, however, exists here one 

 can demonstrate by pressing the cover-glass, whereby 

 traction is exerted on the nerve, and thus it can be seen 

 that the nerve is not merely in apposition to the muscle- 

 fibre. In a similar way we can imagine plain muscle- 

 fibre to be supplied with nerve. 



I strongly suspect that the nerves which Kolleker 

 describes as the sensory nerves of muscle (page 388, Cth 

 edition) are only such a modification of the motor nerves 

 as I here describe. 



Figure 3 treats of such an important subject that one 

 might spend hours in discussing it. We see here a nerve- 

 bundle with two nerves. The thicker one supplies a 

 muscle-fibre of the tongue in such a way that it is cement- 

 ed to the muscle-fibre for a certain distance, then forms 

 an arch, then applies itself to the muscle-fibre again, ete. 

 If I understand Kuehne correctly in his description of 

 Figures 50 and 51 in his elaborate essay of 1886, he places 

 the entire ending, arches and all, beneath the sarcolem- 

 ma. I hope the described method will convince some 

 that this view is not correct. 



The other, finer (sympathetic), nerve-fibres go directly 



