A Short Explanation of the TABLES. 
which they likewife help to forward towards 
the ftomach. : 
The feventh joint of the probofcis, being a 
fingle one; or the probofcis itfelf, confifting 
partly of a membranaceous fubftance, and 
partly of afubftance between bone and horn. 
It is the underfide of it that I have here re- 
prefented, as it may be fuppofed to appear, 
on turning the Bee upon its back. 
&k Part of the probofcis itfelf, of a fubftance 
between boneand horn, conftruéted in fuch 
a manner, that the Bee can feperate it from 
the main body of the probofcis, and give it 
a circular form. 
? The gullet reprefented cut off. 
m The membranaceous part of the probofcis 
itfelf, which lies beautifully folded up under 
the other portion of the probofcis juft now 
mentioned, as confifting of a fubftance be 
tween bone and horn. 
‘2m The part of the probofcis which confifts of 
a fubftance between bone and horn, tending 
inwardly, and forming, as it were, a nar- 
tow channel. 
ao The fore extremity of the probofcis cover- 
ed with crooked hairs, and furnifhed with a 
little ‘head, in which there is a hole that 
feems to be the cavity of the membranaceous 
. part. 
p That part of the probofcis, , which confifts of 
~ a fubftance between bone and horn, divided 
at its fore extremity into two fhanks. 
g9q Uhree very black, but fhining, joints of 
the probofcls, of a fubftance between bone 
and horn, and forming the lower part of the 
probofcis. The middle of thefe joints is the 
fheath or cafe of the probofcis, and is fur- 
nifhed with mufcles; which belong to the 
fecond pair of joints ee of this organ. But 
the two extreme joints of the part now be- 
fore us, contain mufcles that adminifter to 
the firft pair of joints aa. 
rrrr The articulations by which the three 
joints ggg are united with the parts of the 
_ @head. 
.s $s .The ftrong mufcles ferving to move inwards 
the probofcis, its joints and fheath. 
# A thin tranfparent membrane, through which 
the mufcles s s may be difcerned. 
We 
ForG Seva: 
More diftinétly exhibiting in what manner that 
part of the probofcis, which confifis of a fub- 
ftance between bone and horn, and which is re- 
prefented under the letters kk Fig. V, can form 
itfelf into a circle, and dilate the membrana- 
ceous parts of the probofcis at the time of 
its fuctvon. 
aaa.-That portion of the probofcis, -which 
confifts of a fubftance between bone and 
horn, This part ismuch blacker and ftronger 
in the middle of it than elfewhere, as is very 
difcernible. 
xx 
b The circular form or bending which that » 
part acquires at the time of fuction. 
cccc The expanfion, in form of a fail, of the 
membranaceous part of the prebofcis, that 
lies folded up under the other part that con- 
fifts of a fubftance between bone and horn. 
The former part acquires the {aid form, when 
the latter projects itfelf in that of acircle. 
d The papille, or glandalous protuberances of 
the membranaceous part of the probofcis. 
Thefe particles appear moft vifible when the 
faid part is expanded. 
e The place where that part of the probofcis, 
which confifts of a fubftance between bone 
and horn, tends inwardly, and uniting with 
the remaining hairy part of the probofcis, 
forms, as it were, a narrower channel. 
J The fore extremity of the probofcis, covered; 
as it were, with crooked hairs, and perfo- 
forated in the middle. 
g The hairs of the probofcis, which are not 
of an equal thicknefs, but fomewhat bigger 
near the roots. 
EP GOVE: 
The probofcis of a Wafp, viewed on its lower 
fide. 
a Part of the probofcis of a horny fubftance; 
which conftitutes the lower part of the in- 
fe&’s head. This part is covered with hair 
on its fides, and is all of a fhining black, 
_ except two yellow {pots. ok, 
bbc Three horny particles or joints, which 
ferve in a manner to form the root of the 
probofcis. The two lateral 4 contain the 
mufcles, that govern the briftles dd; but 
the middle joint ¢ ferves, as it were, for a 
cafe or {heath to the probofcis. 
dddd.Four articulated briftles, which affitt 
the probofcis in its fuctions. 
ee ‘The place where the teeth are broken off. 
J The probofcis itfelf, adorned with four beau- 
tiful white particles, or rather protuberances, 
that terminate in little round knobs, 
atl VIL, 
The hair of a Bee, as it appears through thé 
microfcope, in the form of a feather, ~ 
a The ftem, as it were, of the feather. 
b& The {maller lateral branches {pringing from 
the ftem. 
¢ The hairy extremity of the ftem. 
FIG. IX. 
The lungs of the Bee. 
aa The pulmonary veficles of a white colour. 
66 &c. The little tubes branching from.thefe 
veficles ; they confift of fpiral rings, which 
“in this place are always open. 
c¢ &c, Other veficular dilatations of the pul- 
: monary 
