The _motions of insects_ are performed through the medium of an appropriate apparatus of muscles, which move the head, trunk, abdomen, viscera, and limbs, as in other parts of the animal creation. The muscles of insects generally possess very great power, as may be seen by the motion of the mandibles, and the propulsion of the bee's sting. It is very strikingly evinced also in the flea. +Latreille+ gives an account of one that dragged a silver cannon twenty-four times its own weight, firing it off afterwards, without exhibiting any symptom of fear. An English workman also is said to have made an ivory coach, with six horses, a coachman on the seat with a dog between his legs, a postillion, four persons in the coach, and four lacqueys behind,--the whole of which was dragged by a single flea. A further evidence of the muscular power of the flea is the extent of its leaps, which equal a space of 200 times the length of its own body. This calculation, or a very similar one, was made by +Socrates+, who was much ridiculed for it by +Aristophanes+. The poet, however, did not confine his ridicule to this minuteness of calculation, but attacked likewise the character and precepts of that great philosopher; for the whole of which satire he has justly incurred the censure of posterity. +Organs of Reproduction.+ These organs, in the drone, correspond in function and denomination with those of the higher classes of animals: their chief peculiarity consists in their size, in proportion to that of the insect, and in their being more under the belly than in other insects of this tribe;--they are larger than those of the humble-bee, and the two last scales of the back and belly are larger than those of the queen or workers.