— 208 — 
dissolved in turpentine to which was added a little abs. 
alcohol). 
Fig. 83. Fatella vulgata. (Magnified 570 diameters). Part of a 
transverse section through a pedal nerve-cord. gc Ganglion 
cell. a Ganglion cell. w" Neuroglia nuclei adhering to 
the sheath of this cell and its nervous pracess. Three 
similar nuclei situated close together. n Neuroglia-nuclei. 
Quite similar nuclei {n) are also situated in the connective 
tissue outside the perineurium {sh). ri Larger, circular 
or ovoid, less staining nuclei situated in the same con- 
nective-tissue. nc, nc^ Neuroglia-cells. nc"^ Large, ovoid 
neuroglia-cell. w/ Nerve-tubes or nervous processes. (Pre- 
paration the same as in fig. 82). 
» 84. Lumbricus agricola. (Magnified 950 diameters; Zeiss. 
Hom. im '/jg, i.) Ganglion cells (gc) the nervous pro- 
cesses of which pass into the dotted substance [ds) and 
run longitudinally along the ventral nerve-cord. Tåken 
from a horisontal longitudinal section of the ventral 
nerve-cord. 
» 85. Patella vulgata. (Magnified 1 1 50 diametars ; Zeiss. Hom. 
im. Vi 8' 2.) Slender nerve-tubes and nervous fibrillæ, 
from a pedal nerve-cord, isolated in fresh state. 
> 86. Patella vulgata. (Magnified 750 diameters; Zeiss F, 2.) 
Nerve-tubes and fibrillæ from a pedal nerve-cord, ma- 
cerated in glycerin (i), acet. acid (i), aqua dest. (5). 
a & & Thick nerve-tubes giving off side-branches. nc Neu- 
roglia cells. 
> 87. Gorella parallelogramma. (Magnified 11 50 diameters; 
Zeiss. Hom. im. Vig? 2.) Part of a longitudinal section 
through the brain. a — g Ganglion cells. n Neuroglia- 
nuclei. n Similar nucleus adhering to the sheath of a 
nervous process. (Fixed in osmic acid (i ^/q), stained 
with picro-carmine) 
» 88. Cot ella parallelogramma. (Magnified 620 diameters; Zeiss 
F, ic) Anterior part of a horizontal longitudinal section 
of the brain. c Ganglion cells. gc Ganglion cell situated 
in one of the anterior nerves, n Nuclei adhering to the 
inside of the perineurium. w' Neuroglia-nuclei situated in 
the sheaths of the nerve-tubes. (Fixed in osuilc acid (i 7o)> 
stained with picro-carmine). 
