+Messrs. Huber+ and +Son+ ascertained that the office of collecting honey, for the elaboration of wax, is filled by a particular description of bees or labourers, to which they have given the name of _wax-workers_. These bees are susceptible of an increase in size, as is evident from the state of their stomachs, when quite full of honey. Dissection has shown that their stomachs are more capacious than those of the bees that are differently occupied. Bees not possessed of this expanding stomach, gather no more honey than is necessary to supply the immediate wants of themselves and their companions, with whom they readily share it: these are called _nursing-bees_, their principal duty being to attend the eggs and larvæ. The task of storing the hive with provisions devolves upon the wax-workers, who, when not occupied in the construction of comb, disgorge their honey into those cells which are intended for its reception. By marking the bees, it was found that they never encroached upon each other's employment: this strict adjustment of duty is the more remarkable, since the power of producing wax is common both to the nursing- and wax-working bees, a small quantity of wax being really found in the receptacles of the nursing-bees. In the foregoing experiments for ascertaining the sources of wax, the bees had borne their confinement without evincing the least impatience; but on another occasion, when shut up with a brood of eggs and larvæ, and without pollen, though honey was copiously supplied, they manifested uneasiness and rage at their imprisonment. Fearing the consequence of this state of tumult being prolonged, Huber allowed them to escape in the evening, when too late to collect provisions; the bees soon returned home. At the end of five days, during which this experiment was tried, the hive was examined:--the larvæ had perished, and the jelly that surrounded them on their introduction into the hive had disappeared. The same bees were then supplied with a fresh brood, together with some comb containing pollen: very different indeed was their behaviour with this outfit; they eagerly seized the pollen and conveyed it to the young; order and prosperity were re-established in the colony; the larvæ underwent the usual transformations; royal cells were completed and closed with wax, and the bees showed no desire to quit their habitation. These experiments afford indisputable evidence of the origin of wax and the destination of pollen.