56 PROCEEDINGS OF SOCIETIES. 
with Schneider, and expressing his sincerest doubts as to whether 
these so-called nerves and ganglia-cells had anything whatever 
to do with a genuine nervous system (see his ‘ Untersuchungen 
iiber Nematoden,’ s. 10). The large granular cells observed by 
Max Schultze in the neighbourhood of the cesophagus in Enoplus, 
and the more marked structures described by Leuckart, as a 
central nerve-system in Zrichocephalus hominis and Trichina 
spiralis, were not, in Eberth’s opinion, true nervous elements.” 
For his own part, he must admit that he had all along regarded 
the lateral lines of Nematoda as representing a peripheral nerve- 
system; but it could not be denied that the histological elements 
were very different from those ordinarily presented by the nerve- 
cords and ganglia of animals higher in the scale of organization. 
The following parasites were then exhibited by Dr. Cobbold: 
Sexually mature human parasites.— Fasciola hepatica ; Distoma 
lanceolatum; D. heterophyes; Bilharzie hematobia; Ascaris 
lumbricoides; A. mystax; Trichocephalus dispar; Trichina 
spiralis; Oxyuris vermicularis ; Tenia solium; T. medio-canellata; 
T. marginata; T. echinococcus; T. nana; TP. elliptica; Bothrio- 
cephalus latus ; and B. cordatus. 
Larval human entozoa.—Cysticercus cellulose; meazle of 7. 
medio-canellata; Cyst. tenuicoilis; hydatids and scolices of 2. 
echinococcus ; embryos of Lrichina; young of Dracunculus ; and 
embryos of Oxyuwris ; and also the so-called Pentastoma denticula- 
tum, which is not strictly referable to the class of helminths. 
Adult animal parasites—Distoma varicum ; D. compactum ; D. 
constrictum; D. clavigerum; D. coronariwm; D. Bosew ; Tricho- 
cephalus affinis; Spherularia bombi; Ascaris megalocephali; A.oscu- 
lata ; A. capsularia ; A. retusa; Trichosoma longicolle ; Strongylus 
paradoxus; Echinorhynchus proteus; E. porrigens ; E. anthuris ; 
Tenia pusilla; TL. cueumerina; T. uncinata; T. cenurus ; T. far- 
ciminalis ; T. serrata; Diphyllobothrium stemmacephalum ; and of 
the acarine genus Pentastoma, P. tenioides and P. multicinctum. 
Larval forms.—Cysticercus fasciolaris ; C. pisiformis ; C. talpe; 
Cenurus cerebralis; scolex of Tetrarhynchus reptans, and of 
another species; and various Echinococci.  - 
The Hon. Sec., Mr. Hennah, also exhibited a male Strongylus 
(probably 8. spiculatus) from the common goose; and Dr. Daw- 
son showed specimens of Echinococcus heads taken from an 
hydatid in the human orbit. 
The living Nematodes procured by Mr. Murray were carefully 
examined, but the members were not satisfied that the microscopic 
appearances, presented within the lateral canals, were referable to 
true nervous elements. 
At the conclusion of the meeting, the president expressed, on 
behalf of himself and the members, his thanks to Dr. Cobbold 
for the loan of the above-mentioned specimens, selected from his 
cabinet, and also for the explanations he had so efficiently given. 
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