1195 
examined the portion between the 3° and 4 and between the 12% 
and 13' segments. In the first-named portion very strong radia- 
tions from the 3 thoracal ganglion into the sympathetic trunk could 
be seen, and beside them seattered cells, also sometimes little groups 
of 6—8 cells, in the latter portion separate elongated masses of cells, 
peripherally as well as more centrally. Of the nervus splanchnicus major 
I examined the middle portion of the free part and in a few series 
[ was able to show a ganglion centrally situated and consisting of 
8 cells (fig. 2). A ganglion splanehnium Arnoldi occasionally occurs, 
and this I found also. In the pars lumbalis (between the 3" and 4th 
vertebra) rows of ganglion cells and small ganglia were to be seen, 
= 
as —= 
Fig. 2. Equus Nervus splanchnicus major. 
the largest colleetion of small ganglia, however, exhibited the pars 
sacralis (fig. 3).- In the plexus lienalis and the plexus mesentericus 
cranialis I met no ganglion cells, neither in the nervus vertebralis 
Fig. 3. Equus. Nervus sympathicus. Pars sacralis. 
nor in thoracal rami communicantes; in a few lumbal rami 
Ge 
