E X P L A N A T I O N OF THE TABLES.
T A B L E XX X l i r .
FIGUKE I. of this Table reprefents the fpinal marrow and aerves in the tail of
a fmall Haddock, difleiled and magnified to four diameters.
Fig. 2. Shows the natural iize of the tail.
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A , The upper, and B the under, part of the Haddock In its horizontal fituation.
C C , The bodies of the vertebrx.
D D, The fpinal marrow, with the fpinal nerves iffuing from it.
Thefe ner\'€S, as they proceed, form plexufes G G, which are covered by fpheroidal
bodies, tliat adhere firmly to the nerves and to each other. In the fin of
the tail, the fpheroidal bodies gradually become lefs numerous ; then are fcen
fingle, or at a diftance from each other, with the nerve appearing bare between
them, as at H H, where the nerves are fupported on pins -, at laft, near the edges
o f the fin of the tail, where the nerves are divided into fmall parts, the fpheroidal
bodies are not found.
T A B L E XX X I V .
IN this Table are reprefented, in a Skate, the upper furface or back part of
the brain and the top of the fpinal marrow, with the nerves rifmg from thefe,
the mufclcs of the right eye, and a general view alfo of the internal parts of both
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A , The fnout of the fiíli.
B, The eye-balls.
C C C O, The mufcles of the eye-ball.
D D, PaíTages into the throat.
E F G , EFG, The femicircular canals of the ear flightly ílcetched.
H, A broad thin ligament which fupports the femicircular canal G.
I, The bottom of the meatus auditorius imperfectly reprefented.
J, A cavity in the fore part of the cranium filled with vifcid fluid.
K K, Two anterior lobes of the brain.
L , A middle lobe of the brain.
M M , Two pofterior lobes of the brain.
N N, Two lobes of the cerebellum.
O O, Subflances rcfcmbling our corpora olivarla.
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