— 204 — 
dotted substance. npr Nervous process. a, a , h Side- 
branches given of from the nervous processes. p2)r Pro- 
toplasmic processes. (The cells were isolated in weak 
solution of alcohol or in potassium-bichromate (0.003 %))• 
Fig. 58. Cor ella par allelo gr amma. (Magnified 13 50 diameters; Zeiss 
F. 4.) Section of a ganglion celi situated peripherically 
in the brain. n pr Nervous process. a Lightly staining 
parts of the protoplasm. (Fixed in osmic acid (i ^/q) 
and stained with picro-carmine.) 
» 59- Uomarus vulgaris. (Magnified 350 diameters ; Zeiss CC, 4.) 
Isolated ganglion cell of a ventral ganglion. « & 6 Lightly 
staining masses of primitive tubes, c Bundle of primitive 
tubes forming the contents of the nervous process (npr). 
hr Side-branches given off from the process. (Macerated 
in acetic acid (i), glycerin (i), aqua dest. (5) and stained 
with ammonia-carmine.) 
» 60. Homarus vulgaris. (Magnified 750 diameters ; Zeiss F, 2.) 
Isolated ganglion cell from a ventral ganglion, n Neuro- 
glia-nucleus situated in the sheath of the cell. npr Nervous 
proceses. (Macerated in acetic acid (i), glycerin (i), aqua 
dest. (5) and stained with picro-carmine.) 
» 61. Homarus vulgaris. (Magnified 13 50 diameters ; Zeiss F, 4.) 
Part of a section through the dotted substance of a 
thoracal ganglion, exhibiting the origin of a bundle {a) of 
nerve-tubes or rather primitive tubes in the dotted sub- 
stance. a Bundle of primitive tubes, longitudinally trans- 
sected. h Longitudinally transsected primitive tube. c Ob- 
liquely transsected primitive tube. tpt Transversally trans- 
sected primitive tubes. n Neuroglia-nucleus. (Fixed in 
chromo-aceto-osmic acid, stained with neutral borax- 
carmine.) 
» 62. Homarus vulgaris. (Magnified 620 diameters; Zeiss F, i.) 
Part of a section through the dotted substance of an ab- 
dominal ganglion, exhibiting the mixture of large and 
small tubes in the dotted substance ds The real dotted 
substance consisting of very small tubes, which are trans- 
versally, or obliquely, or partly longitudinally transsected. 
tnt, tnf Transversally transsected large nerve-tubes. a Sib 
Bundle of nerve-tubes longitudinally transsected. nt Large 
nerve-tube. n f Large nerve-tubes, subdividing dichotom- 
ously. nu Neuroglia. n, n, ri^ Neuroglia-nuclei. x Large 
nucleus. 
