340 S. W. RANSON AND P. R. BILLINGSLEY 
tion with one stained by osmic acid. In the latter, in place of 
the dense interlacement of fine fibers just described, one sees 
only here and there an isolated myelinated fiber. In many 
parts of the ganglion these are less numerous than the nerve cells. 
So far as we can determine the intercellular plexus is entirely 
extracapsular. Although some of the fibers wrap themselves 
about the cells and form what might seem to be pericellular 
plexuses (fig. 11), these are found not to be in any way separated 
from the general plexus which fills in the intervening spaces. 
We believe that these apparently pericellular baskets are really 
pericapsular and represent merely portions of the general plexus 
which are in contact with the cell capsules. It is not clear 
Fig. 11 Three cells from the ganglion cervicale superius of the dog showing 
fibers of the intercellu ar plexus wrapped about them. These fibers seem to be 
extracapsular. Pyridine silver. > 800. 
whether these formations correspond to the pericapsular nets of 
Michailow or not. It is evident, however, that they do not 
correspond to Huber’s pericellular plexus which is endocapsular 
and forms a closed network. That all of the fibers of the inter- 
cellular plexus are extracapsular is shown by the examination 
of sections in which the ganglion cells have shrunken, leaving a 
cleft between them and their capsule. In such cases the fibers 
in question always remain in or upon the capsule and never lie 
on the shrunken cell. An additional point of distinction is found 
in the fact that the pericellular plexus is a closed network while 
as we shall see anastamoses do not seem to occur among the fibers 
under discussion. Furthermore, we have twice seen a fragment 
