These young hornets washed their faces, cleaned their antennæ, ate one more free meal and set to work. Thereafter the queen mother, having reared her retinue, worked no more, but kept the hive and produced worker eggs as new cells were provided for them, now and then perhaps feeding the children when the workers were busiest. The first care of the new-born workers was to clean out the once used cells and to build new ones. But there was no room for new comb within the thin paper envelope which the mother had built as a first hive. They therefore cut this away, chewing it to pulp again, and building new cells with a larger covering all about them. Then below the first comb they hung a second by paper columns so that there was space for them to pass between the two, standing on top of one comb while they fed the young hanging head down in the comb above. They also added cells to the sides of the old comb, making it much wider. The first little round egg-shaped nest was all of one color, a soft gray, but the new additions are apt to be lighter or darker in color, according to the idiosyncrasies of the individual worker. Some indeed have a faint touch of brown when newly added to the structure though these soon fade, yet you may recognize always the dividing line between one hornet’s work and another’s by the difference in shade. Thus the work went on during the summer, more cells being added to the existing combs, new combs being hung below, and always the surrounding envelope being cut away and replaced to accommodate the internal growth. Late August saw the last additions made. The hive then roared with life. The summer had been a good one and food was plentiful. Under the bounty of fierce summer heat and ample food the workers had developed a new faculty. I have given them the masculine pronoun in speaking of them, for they certainly seemed to deserve it. Surely only males could be at once so sharp and so blunt, so burly, so strenuous and so devoid of interest in anything but their work. Yet it is a fact that in August some of the workers began to lay eggs, and if the old proverb that “Like produces like” holds good they still deserve the masculine pronoun, for these eggs produced only males. At the same time the queen began to lay eggs which were destined to produce other queens. How all this could have been known about beforehand it is hard to tell, but such must have been the fact, for the cells in which these eggs were to be laid were made larger than the others as the greater size of males and females requires.