Essays on the Microscope: Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.Adams, George
Science
Essays on the Microscope: Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.
Adams, George
Insects -- Early works to 1800; Microscopy -- Early works to 1800
The beetle is only an insect disengaged from the pupa form; the pupa is
a transformation in like manner from the worm or larva, and this
proceeds from the egg; so that here, as in the foregoing instances, one
insect is exhibited in four different states of life, after passing
through three of which, and the various inconveniences attendant on
them, it is advanced to a more perfect state. When a larva, it trains a
miserable existence under the earth; in the pupa form it is deprived of
motion, and as it were dead; but the beetle itself lives at pleasure
above and under ground, and also in the air, enjoying a higher degree of
life, which it has attained by slow progression, after passing through
difficulties, affliction, and death.
If we judge of the rank which the beetle holds in the scale of
animation, from the places where they are generally found, from the food
which nourishes them, from the disgusting and odious forms of many,
from their antipathy to light, and their delight in darkness, we shall
not form great ideas of the dignity of their situation. But as all
things are rendered subservient to the laws of divine order, it is
sufficient for us to contemplate the wonders that are displayed in this
and every other organ of life, for the reception of which, from the
FOUNTAIN AND SOURCE OF ALL LIFE, each individual is adapted, and that in
a manner corresponding to the state of existence it is to enjoy, and the
energies it is called forth to represent.
The egg of the rhinoceros beetle[71] is of an oblong round figure, of a
white colour; the shell thin, tender, and flexible; the teeth of the
worm that is within the shell come to perfection before the other parts;
so that as soon as it is hatched, it is capable of devouring, and
nourishing itself with the wood among which it is placed. The larva or
worm is curiously folded in the egg, the tail resting between the teeth,
which are disposed on each side the belly; the worm in proper time
breaks the shell, in the same manner as a chicken, and crawls from
thence to the next substance suitable for its food. The worm, when it is
hatched, is very white, has six legs, and a wrinkled naked body, but the
other parts are all covered with hair; the head is then also bigger than
the whole body, a circumstance which may be observed in larger animals,
and which is founded on wise reasons.[72] If the egg be observed from
time to time while the insect is within it, the beating of the heart may
be perceived.
[71] Scarabæus Acteon, Lin. Syst. Nat. p. 541-3.
[72] Swammerdam’s Book of Nature, pt. 1, p. 33.
Public-domain text, read in full here on John Shaqi.
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