THE CERVICAL SYMPATHETIC TRUNK 337 
may exist is more than offset by the strong physiological evidence 
against such connections. Some of this physiological evidence 
will be briefly presented in a succeeding paragraph. 
The intercellular plexus. Throughout the ganglion there is a 
rich plexus of dendritic branches and fine axons. This has been 
described and figured by Dogiel (’95), Huber (99), and Michailow 
Fig.9 Intercellular plexus formed by dendrites and myelinated and un- 
myelinated fibers from the semilunar ganglion of the cat. Redrawn from Huber 
(799). 
(11). The part which the dendrites take in this formation has 
been discussed in a preceding section. We are interested here 
chiefly in the axonic ramifications which help to constitute it. 
According to Huber, one of whose drawings is reproduced in 
figure 9, there are in addition to the medullated fibers entering 
the ganglion from the white rami, ‘‘small medullated fibers, which 
may be traced from this or that nerve root of a ganglion” into 
THE JOURNAL OF COMPARATIVE NEUROLOGY, VOL. 29, No. 4 
