Efferent Neurones in the Electric Lobes. 3 
Fig. 1 is a section passing through the periphery of the 
cell-body. In this figure, the dendritic processes are shown, 
but not the neuraxone. The position where the neuraxone 
will arise in the sections is marked by A. The fibrillar bun- 
dles which come from all dendritic processes of one side of 
the cell-body (a) take a curving course toward the axone 
hillock, thus forming an arrangement like an inverted U. 
Other fibrillar bundles come also from the dendrites on the 
other side (4) and take the same course toward the neuraxone. 
The dotted areas are interpreted as the cross-sections of 
the similar fibrillar bundles which, running through the cell- 
body in different directions, are therefore cut at different 
angles. In this figure, the fibrillar bundles connecting the 
dendrites with each other are shown very poorly. 
Fig. 2 is the section nearer the center of the cell-body and 
follows Fig. 1. In this figure, the four dendrites are shown 
clearly, and the localities of the neuraxone is indicated by 
“4,” although it does not appear at this level. The fibrillar 
bundles which form the neuraxone come from each of the 
dendrites. The dendrites themselves have close relations 
with each other by means of the connecting fibrillar bundles 
. passing between them. The nucleus is surrounded by the 
fibrils coming from one of the dendrites (c). The fibrillar 
bundles which come from the dendrites (@) also take a part 
in investing the nucleus. The cross-sections of the fibrillar 
bundles show as clearly separated groups. 
Fig. 3 is a section passing through the middle of the 
nucleus and follows Fig. 2. In this figure, the nucleolus is 
visible. The fibrillar arrangements are slightly different 
from those in the figures already given. In this section the 
fibrils do not form large bundles, but are divided into smaller 
strands and interwoven. ‘The intimate connections between 
the dendrites are clearly shown. The nucleus is also sur- 
rounded by the bundles of the fibrils, which come from some 
of the dendrites. Asa rule, in this level the fibrillar bundles 
near the nucleus are short, because bundles are, for the most 
part, cut more or less at right angles to their long axis. This 
suggests that the fibrillar bundles converge towards the 
nucleus. The peculiar arrangement of the fibrils near the 
3 
