On the subject of the sting Paley remarks: "The action of the sting affords a beautiful example of the union of chemistry and mechanism: of chemistry, in respect to the venom, which in so small a quantity can produce such powerful effects; of mechanism, as the sting is not a simple but a compound instrument. The machinery would have been comparatively useless had it not been for the chemical process, by which, in the insect's body, honey is converted into poison; and, on the other hand, the poison would have been ineffectual without an instrument to wound and a syringe to inject the fluid." As before stated the drone has no sting, but, in place thereof, the organs of reproduction, on which, as on the corresponding organs of the queen, sufficient has been remarked above (pages 24 and 63). And now, in concluding this section, we would remark the wonderful contrivance and finish which all the works of the Great Master Artificer unfold. In the works of man we see, perhaps, a piece of mechanism of unquestioned beauty and excellence, yet there is a bolt here or a screw there that might have been dispensed with, and does not possess any definite use. But in the works of Nature everything has a place; we may not at once comprehend the exact purpose of some intricate parts, but that only implies that we have not made a thorough investigation. The most minute hair serves its required end. Some reflections of Dr. Evans, though chiefly referring to the cells of bees, may not inappropriately finish this chapter:--