XXXVI 
than they really are, that they may appear 
the moet eas bal 
ff Two horny bones growing on the fkull, 
_over the eye, which they in a manner divide. 
g An expanfion of the {kull, of a fubftance 
between bone and horn, commonly called 
the nofe-horn, with its rugged furface. 
6 A fuperficial divifion of that part of the eye, 
which lies within the fkull; this divifion is 
formed by the upper projections of the fkull. 
z The brain, confifting, as it were, of two 
united globules. , 
& Pulmonary tubes of the dura mater, and op- 
tic nerves. 
7/1 The fineft parts of the optic nerves, juft at 
their iffuing from the brain. 
mm The fame nerves grown bigger. 
nn The fame grown fmaller. 
0a The fame again increafed, on their ap- 
proaching the eyes. __ 
pp The origin of the f{pinal marrow, cut off 
in that part where it forms a flit for the 
paflage of the gullet. 
Pol Git TX 
The Pulmonary tubes, with their veficles in the 
horned Beetle. 
aa Diftended veficles of the pulmonary tubes, 
of which I here give an entire branch bigger 
than nature. 
66 Tubes and their literal branches, fpringing 
from the upper part of the veficles. 
cc Some tubes iffuing from the fides of the 
faid veficles. 
BPadiGrrxe: 
Ai pulmonary branch and its veficle, viewed with 
! the microfcope. 
aa Rings that compofe the tube, of a fub- 
ftance between bone and horn. 
& The ftruéture of thefe rings, which is fuch 
as to make it probable they are formed by a 
concretion of {pherical particles. 
¢¢ Some places, in which the convolutions, 
compofing the rings are terminated, and fuc- 
ceeded. by new ones. 
dd Membranes binding the rings together; 
in thefe membranes there appear {pherical 
particles, of which they are in a manner 
compofed. 
ee Some {maller rings at the top and bottom, 
of the pulmonary veficle. 
Sf The ftructure of the pulmonary veficle it- 
felf. It is of a white membranaceous fub- 
ftance, compofed of an infinite number of 
minute globules, which on account of their 
convex furfaces give this part, as often as 
the light fhines on it, a white colour, though 
without any refplendency. | 
A Short Explanation of the TABLES 
TAB. XXX. 
B16 he 
Vificule pneumatice, or breathing, or pulmonary 
veficles, that appear between the two plates of 
the fheath covering the wings. 
aa The two largeft branches of the trachea, 
which appear through the faid plates, on 
holding them to the light, and examining” 
them with the microfcope in that fituation. 
6 66 Pulmonary tubes iffuing from the branches 
aa, with their veficles. . : 
c¢¢ Pulmonary tubes iffuing from the faid 
veficles, and again forming other veficles 
and tubes, ec, 
a FU laGe od: 
The firft fpecies of an Exotick, Rhinoceros, or 
horned Beetle. 
a Its eye, from which iffue the projecting part 
of the fkull. 
6 An excrefcence of the fkull, forming a kind 
of horn, in the middle of which there ap- 
pears a tubercle with a fharp point, and a 
fingle cleft at its end. 
¢ The breaft bone projecting on the fore part 
in a fingle tube, which terminates in two 
teeth. 
dd The two lids or covers of the wings, be# 
tween which there lies on the infect’s back 
about its breaft a triangular horny bone. 
This bone keeps the lids or covers when fhut 
from running one over the other. 
e The abdominal rings, in which are the two 
breathing holes of the Beetle, that are al- 
moft clofed up ; I have left them unfhaded, 
that they may appear the plainer. 
fff The three legs belonging to one fide, 
with their joints, nails, and hair. The 
breaft-bone of this infeét, and likewife the 
projecting part of the faid bone, and the 
nofe-horn, are all of a deep brown inclining 
to black; but the fheaths of the wings are 
fomewhat paler, and near to a-light red. 
The legs are black. 
Pre it 
A fecond fpecies of the horned Beetle, which may 
be very properly called the flying Elephant. 
a The eye belonging to one fide of its head, 
in regard to which it plainly appears, that it 
is covered like that of the Dutch horned 
Beetle, by a projecting procefius of the {kull, 
of a fub{tance between bone and horn, and 
that it is likewife united with the faid procefs. 
6 Another projection of the breaft bone, of the 
fame fubftance with that of the fkuil. This 
projection covers the eye too, but is by no 
means united with it; for the eye is eu 
as 3 
4 
4 
4 
a 
