TABLE OF THE PLATES. XXV 
INSECTA. 
Plate 86. Fig. 3.—Cerebrum of the caterpillar of Cossus LtieNipERDA, Lyonet. 
E, E.—Branches to the frontal ganglion. ©.—Nerve of the 
muscles of the mandibles. 6, b.—Nerves of the antenne. 
a, a.—Nerves of the eyes. c c.—Cord of the csophagus, 
P, P.—Nerves of muscles. A, A.—Small ganglion of the 
sympathetic nerve. B, B.—Branches. F.—Nervus sympa- 
thicus. 
Fig. 4.—Brain of MexovontuHa vurearis, Straus. A.—Cerebrum. 
B.—Cerebellum. a, a.—Optic nerves. 0, b.—Nerves of the 
antenne. d, 4.—First ganglion of the sympathic system. 
G, G.—Second ganglion, D.—Frontal ganglion. e, e.— 
Nerves of the mandibles. / f—Nerves of the maxille. 
Fig. 5.—Cerebellum alone, of MELtoLonrua vuLGaris. e, e.—Nerves of 
mandibles. f, fi—Nerves of maxilla. k, k—Connecting cord 
with the cerebrum. h, h,—Connecting cords to the first tho- 
racic ganglia. 
Fig. 6,—Cerebrum of GrytLus micrarorius, with the sympathic system 
seen from above. A, A.—Optic nerves. B, B.—Nerves of 
the antenne. a.—Frontal ganglion. 6.—First ganglion, in 
which the odd nerve terminates. c, c.—The large ganglia. 
e,e.—The small ganglia, whence the sympathic nerve originates 
by two branches, which again unite at d* and d*. e, e.— 
Small ganglia upon the esophagus. f, f—First ganglion upon 
the crop. g, g.—Second, which lies at the end of the crop. 
h, h.—Nerves which pass between the blind appendages, 
.—Brain of GryLius miGRratorivs, seen from the front. A, A.— 
Optic nerves. a, a.—Nerves which pass to the frontal gang- 
lion. 6, b.—WNerves of the antenne. a*®, a*, a*.—Nerves to 
the ocelli. d, d.—Connecting cords between the cerebrum 
and cerebellum. d*.—The connecting cord of these. B— 
Cerebellum. e, e,—Nerves of the mandibles. f, f-—Nerves 
. of the maxille, 
8.—Ventral cord of the fly ERisTaLis TENAX, a, a.—Connecting 
cords with the cerebellum. A, A.—Nerves of the anterior legs. 
B, B.—Of the intermediate, C,C.—Of the posterior. 5, b.— 
Branches vf the muscles which pass into the abdomen. d,— 
First abdominal ganglion. c, c.—Branches of it. e.—Second 
abdominal ganglion. f, f, h, h, gy, g—Branches of it to the 
genitalia and other internal organs. 
Fig. 7 
~ 
35 
Plate 87. Fig. 1. A.—Brain of the larva of CaLosoma sycopHaNTa. A,—Cerebrum. 
a, a.—Optic nerves. 6, b,—Nerves of the antenne. d, d— 
Branches to the frontal ganglion. D.—Frontal ganglion. 
F.—First ganglion of the sympathic system. B.—Cerebellur. 
e, e.—Nerves of the mandibles. f, /.—Nerves of the maxilla. 
9, g-—Nerves of the labium. 
Fig. 1. B.—Part of the ganglionic ventral cord of the larva of Catosoma 
SYCOPHANTA. k—Cerebellum. h, h.—Ausiliary connecting 
cord, with the first thoracic ganglion. n, n—Auxiliary gan, - 
lia. A, A.—Nerves of the anterior legs. L.—First thoracic 
ganglion. 7, 7.—Auxiliary connecting cords of the first and 
second ganglia, forming small ganglia, mm. sk, k.—Auxiliary 
connecting cords between the second and third ganglia. M, 
—Second thoracie ganglion. N.—Third. O.—Fourth. p, p, 
q> 9 % 7: 8, 8-—Nerves of muscles. B, B.—Nerves of the 
intermediate legs. ©, C.—Nerves of the posterior legs, 
Fig. 2..+The ventral cord of Dyriscus MarncinaLis. A, A.—Nerves of 
the anterior legs. B, B.—The intermediate ones. C, C.— 
The posterior ones. 
8 
