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description. The accompanying figures give an idea of t lie appearance 

 of the sympathetic nerves and theii- terminal oi-gans on the ordinary 

 cross-striated muscle fibres. 



Figures 1, 2, 3, and 4 are drawn from preparations of the mm. 

 interossei mentioned above. (I have drawn the figures with the help 

 of the following optical aids — Abbk's drawing ap|)aratus and Leitz 

 immers. ^U^a ocul. 4 for figs. 1, 2 and 3, Rkichickt's drawing 

 apparatus and Zkiss apochr. horaog. immers. 2 mm. apert. J.3comp. 

 ocul. 6 for fig. 4). On account of the operations that the animal 

 had been subjected to, and on account of the length of the period 

 of degeneration there is reason to assume thai the intact nerves 

 which are found in the preparations and which are leproduced in 

 these figures are of a sympathetic and post-ganglionar nature — this 

 is more especially the case, as 1 also obtained similar results in the 

 animal that had undergone the coriesponding opeiation, but in which 

 the period of degeneration had been ten days. 



The preparation on which fig. 1 is based shows at d) a degene- 

 rated spinal nerve that ends in a similar degenerated motor plate on 



:d- 



A— 



Ai 



Fig. 1. 



Fig. 2. 



