164 JOURNAL OF COMPARATIVE NEUROLOGY. 
cell itself. The cells of the second type are the largest in the 
ganglion. Their fibrillae are of nearly equal size and forma 
diffuse network throughout the plasma of the cell. 
The difference in the fibrillar structures contained in these 
two types of cells was very apparent in my own preparations. 
A good example of the smaller type (the motor cells of 
ApAtuy) is illustrated in Figure 14 (Plate VI). The inner 
network about the nucleus was quite distinct in the preparation; 
the fibrillae of which it is composed are somewhat larger and 
therefore easier to trace than those in the periphery of the cell, 
but preparations in which practically all of the fibrillae within 
the cells are stained, show no such sharp distinction in the size 
of the fibrillae as ApAtTuHy describes. Certain fibrils might 
appear a little larger than others, but my preparations do not 
warrant the assertion that the larger fibrillae a/ways form the 
inner network, and the smaller the outer one, as APATHY main- 
tains. Such large fibrillae as APATHy describes are often found, 
however, in preparations in which only a portion of the fibrils 
are stained. It may also be observed that the smaller the 
number of the fibrillae to be seen in a cell process, the larger 
those fibrillae usually are. It is well known that APATHY’s 
gold chloride method demonstrates the fibrillae more com- 
pletely in the cells than in their processes, and the large 
‘‘motor” fibril which ApAtuy figures entering the cell and 
forming the inner network, is, in every case, it may be noted, 
the only fibril in the cell process. Several large fibrillae are often 
formed in the cell processes by the cleaving together of the 
primitive fibrils; if the impregnation of these were incomplete 
so that only one fibril is visible, conditions would be produced 
like those figured by ApATHy. We have such a case evidently 
in Figure 3 (Plate V). One large fibril (4) is seen in the cell 
process; this, however, divides into four smaller ones on enter- 
ing the cell. It is obvious that but few of the fibrillae are 
stained, which renders it especially easy to follow those which 
are demonstrated. This cell belongs to the smaller type 
described by ApAruy, but it may be observed that only one 
branch (a) of the large fibril joins the inner network about the 
