124 WizraaAM A. Hinton, 
and cells. In places minute branches from the body of the cell 
continuous with the fibrillae within it were traced out some distance. 
These fine processes from cells and from larger fibers were seen in 
many places and appear to form a delicate network of the more 
peripheral branches. Such a network of fibrillae was evident in 
all central portions of the ganglion, but it was only in favorable 
localities that this meshwork was found to be continuous with the 
processes of the cells and apparently with those of more than one 
neuron. This fine network shows to best advantage only in per- 
fectly preserved specimens. The fibrillae may not actually fuse 
1 ae K. Cells from Tunica nigra, chiefly from the central parts of a ganglion. 
Url. 
with each other, but the best Zeıss apochromatic oil-immersion lenses 
gave no evidence of a different condition. No hint was gained by 
the use of the highest powers as to where the fibrillae of one cell 
left off and those of an other began. A number of the larger pro- 
cesses of cells could be followed some distance into the ganglion 
with their numerous apparently anastomosing side branches, until 
they broke up into minute meshworks and could not be followed 
farther (Fig. K). 
Strueture of the cells. 
Many cells (Fig. L) were found to contain minute fibrillae. 
These were best shown by hematoxylin methods. Cells stained by 
