In a wet spring the young swarms are more numerous; in a dry one the honey is most abundant. If food happens to fail the inhabitants of any particular hive, the swarm makes a concerted attack upon a neighbouring one, with the view of plundering it. The swarm that is thus attacked, at once ranges itself in battle array, and if the bee-keeper should happen to be present, that side which perceives itself favoured by him will refrain from attacking him. They often fight, too, for other reasons as well, and the two generals are to be seen drawing up their ranks in battle array against their opponents. The dispute generally arises in culling from the flowers, when each, the moment that it is in danger, summons its companions to its aid. The battle, however, is immediately put an end to by throwing dust[65] among them, or raising a smoke; and if milk or honey mixed with water is placed before them, they speedily become reconciled. CHAP. 19. (18.)—THE VARIOUS KINDS OF BEES. There are field bees also, and wild bees, ungainly in appearance, and much more irascible than the others, but remarkable for their laboriousness and the excellence of their work. Of domestic bees there are two sorts; the best are those with short bodies, speckled all over, and of a compact round shape. Those that are long, and resemble the wasp in appearance, are an inferior kind; and of these last, the very worst of all are those which have the body covered with hair. In Pontus there is a kind of white bee, which makes honey twice a month. On the banks of the river Thermodon there are two kinds found, one of which makes honey in the trees, the other under ground: they form a triple row of combs, and produce honey in the greatest abundance. Nature has provided bees with a sting, which is inserted in the abdomen of the insect. There are some who think that at the first blow which they inflict with this weapon they will instantly die,[66] while others, again, are of opinion that such is not the case, unless the animal drives it so deep as to cause a portion of the intestines to follow; and they assert, also, that after they have thus lost their sting they become drones,[67] and make no honey, being thus castrated, so to say, and equally incapable of inflicting injury, and of making themselves useful by their labours. We have instances stated of horses being killed by bees.