THE MONTHLY MICROSCOPICAL JOURNAL, JANY. 1st, IS?-:. PLATS V- 



Fig. 1. Fig. 2, 



Ml lU I, I 



Portion of an elementaiy naasculai fibre trom one of 

 the abdominal rauscles ot the white mouse with dark 

 bordered fibres (a) crossing over its surface. Tt will 

 be observed that a fine fibre, w^bicb seems at the upper 

 part of the figure to be one of the outlines of the 

 tubular membrane of one of the dark-bordered fibres, 

 leaves the dark-bordered fibre and passee to the capil 

 lary vessel b. I have so often obseived a dark- 

 bordered nerve-fibre distributed to muscle divide into 

 two branches, one of which passed to a vessel, while 

 the other ramified upon the muscle, taat I believe the 

 arrangement to be usual and probably essential. 



Fig. 3. 



A small portion ofFig l,to theleftof letterc, 

 much more highly magnified. A portion 

 of the capillary vessel is marked a. The 

 capillaries, dark-bordered nerve-fibres. 

 and pale nucleated fibres represented in 

 the drawing, as w^ell as the intervening 

 connective tissue, can be completely 

 stripped oS" from the surface of the 

 sarcolemma without tearing that roem- 

 brane. Of the structures therefore repre- 

 sented in this drawing not one can lie 

 beneath the sarcoTeratna. 1S65. 



Ganglion cell with fibres connected with it passing off in three different directions. The large dark -bordered 



fibre immediately below the cell has no connection with it, and is probably net influenced by it. One 



of thefibres passing from the cell becomes a fine dark-bordered fibre (6}- a is a capillary vessel. Prom, 



the bladder of the hyla. x 1,800. December, 1862. 



RELATION OF FINE NERVE-FIBRES TO CAPILLARY VESSELS. 



