NERVE TERMINATIONS OF THE TADPOLE. 61 
are more developed and more numerous when the epithelium 
is four or five-layered. This is contrary to what Mitrophanow 
observed, who contends that they are only to be found in the 
basal cells, from many of which they may be absent, and that 
they are most prominent when the epithelium consists of two 
layers only. My observations cannot confirm either of these 
statements. A figure of Eberth is never absent from a basal 
cell and is to be found in the great majority of those of the 
intermediate layers. 
I need not describe the figures of Eberth more fully, since 
I have given at the commencement of this paper the substance 
of Eberth’s own description. For the appearance presented 
by these structures I refer the reader to figs. 1 and 2, e. 
If sections stained with nigrosine be treated with a saffranine 
solution in the manner already indicated, it will be seen in a 
large number of cases that one or more red fibrils run in the 
axis of a figure of Eberth, which retains its deep stain. If a 
figure coils around a nucleus, a red fibril will be found to 
traverse the course of the coil. Most of these fibrils terminate 
in minute knoblike swellings within the body of the figure 
itself, or in one of its finer divisions. 
All red fibrils in these sections are not found inside figures 
of Eberth. Between some of the basal cells one can very often 
see such a fibril passing upwards from the corium to terminate 
in a figure of one of the cells of the intermediate layers. 
Again, when a figure of Eberth terminates near the lateral 
or upper wall of a cell its fibril may pierce the cell wall, enter 
the intercellular spaces, and, after a certain distance, penetrate 
the figure of a cell of an intermediate layer. It may divide 
before its termination, or after it has penetrated the figure. 
An example of the latter occurrence is seen in fig. 2. The 
distribution is, however, very irregular. One or more of the 
branches of these intercellular fibrils may terminate in figures 
of Eberth in cells of the intermediate layers, while others may 
end in minute beads which lie free between the cells. These 
fibrils as a rule do not pass directly through the corium 
into the subcutaneous tissue. The majority of those which 
