On the History and Natural Arrangement of Insects

Longman, Orme, Brown, Green, & Longmans, 1840 - 406 pagina's
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Pagina 394 - Is not the precept of a musician, to fall from a discord or harsh accord upon a concord or sweet accord, alike true in...
Pagina 394 - Neither are these only similitudes, as men of narrow observation may conceive them to be, but the same footsteps of nature, treading or printing upon several subjects or matters.
Pagina 37 - When in a state of repose, it resembles a very minute mussel, and lies upon one of its sides at the bottom of the vessel of sea-water in which it is placed ; at this time, all the members of the animal are withdrawn within the shell, which appears to be composed of two valves, united by a hinge along the upper part of the back, and capable of opening from one end to the other along the front, to give occasional exit to the limbs. The limbs are of two descriptions : viz. anteriorly, a large and very...
Pagina 143 - ... and if subjected to the processes used with other saccharine juices, might be converted into the choicest sugar, or sugarcandy. It is a fact also, which appears worthy of noticing here, that though wasps are so partial to this food, yet the bees appear totally to disregard it.* ' " In the height of summer, when the weather is hot and dry, and aphides are most abundant, the foliage of trees and plants (more especially in some years than others) is found covered with, and rendered glossy by, a...
Pagina 38 - Spring of 1826. and in order to see what changes they might undergo, were kept in a glass vessel covered by such a depth of sea-water that they could be examined at any time by means of a common magnifying glass ; they were taken May 1st, and on the night of the 8th, the author had the satisfaction to find that two of them had thrown off their...
Pagina 143 - ... voided liquid sugar, he would soon lay it down, regarding it as a fabulous tale, calculated to impose on the credulity of the ignorant ; and yet such is literally the truth. The superior size of the Aphis salicis will enable the most common observer to satisfy himself on this head.
Pagina 143 - Aphis salicis will enable the most common observer to satisfy himself on this head. On looking steadfastly for a few minutes on a group of these insects, while feeding on the bark of the willow, one perceives a few of them elevate their bodies, and a transparent substance evidently drop from them, which is immediately followed by a similar motion and discharge, like a small shower, from a great number of others. At first, I was not aware that the substance thus dropping from these animals, at such...
Pagina 38 - In this stage the sutures between the valves of the shell and of the operculum were visible, and the movements of the arms of the animal within, although these last were not yet completely developed ; the Eyes also were still perceptible, although the principal part of the black colouring matter appeared to have been thrown off with the exuvium. On the...
Pagina 149 - ... and proboscis are so small, with respect to the rest of the animal, as hardly to be discovered except by a good eye, or by the assistance of a glass ; so that on a general view it bears as great a resemblance to a seed or berry as to an animal. This was the cause of that difference in opinion, which long subsisted between several authors ; some maintaining that Cochineal was a berry, while others contended that it was an insect.
Pagina 309 - L. 4. A hexapod and distinctly antenniferous larva, with a subovate rather conical body, of which the second segment is longer and of a different form from the others, so as to give the appearance of a thorax.

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