— 20I — 
Fig. 34. (Magnified 350 diameters; Zeiss CC, 4). Transverse sec- 
tion through the process of a ganglion cell, exhibiting 
the concentric layers of neuroglia (nm) surrounding the 
contents of the process (pc), br Transsected side-branch, 
issuing from the process the process. 
» 35 & 36. (Magnified 620 diameters; Zeiss F, i.) Two trans- 
verse sections through the same process of a ganglion 
cell; selected from a series of sections. pc Contents of 
the process, in which the transsected primitive tubes are 
distinctly seen. sf Transsected spongioplasmic fibres 
ocurring in the external layers of the contents. br, br Trans- 
sected branches issuing from the process. nm Concentric 
layers of neuroglia. n Neuroglia-nucleus. b & c Similar 
nuclei deeply stained. 
» 37. (Magnified 350 diameters; Zeiss CC, 4.) Section through 
a ganglion cell. a External, lightly stained, layer of the 
protoplasm. b Mesial deeply stained part of the proto- 
plasm. sf Spongioplasmic fibres. sf^ 81 sf^^ Similar spon- 
gioplasmic fibres surounding the lightly stained contents of 
the process, in the prototoplasm of the cell. br, br Branches 
of the process. 
> 38. (Magnified 620 diameters; Zeiss F, i.) Section through 
three ganglion cells (A, B, C) from an abdominal ganglion. 
v, v' Transsected masses of primitive tubes, situated peri- 
pherically in the protoplasm of the cell. Similar 
masses situated on the sides of the bundle of primitive 
tubes forming the contents of the process, sf Spongio- 
plasmic fibres surrounding this bundle of primitive tubes. 
s Septa or fibres, partly separating the masses of primi- 
tive tubes. Small septa and fibres penetrating these 
masses, n Neuroglia-uncleus. a, a Lightly stained parts 
of protoplasm situated round the bundle of primitive 
tubes forming the contents of the process. b External 
lightly staining layer of the protoplasm. p Process of 
the ganglion cell (C). cm Sheath of a ganglion cell. 
» 39. (Magnified 620 diameters; Zeiss F, i.) Lateral section 
through the same cell as is illustrated in fig. 38, A, In 
this section lightly staining masses of primitive tubes are 
almost solely transsected. a Deeply staining protoplasm. 
b Place where the section has passed just on the border 
between the deeply staining protoplasm and the lightly 
