The hive which has sent forth a colony usually contains large quantities of brood and eggs, and some cells in which princesses are more or less developed, so that queens would be provided in proportional succession. If the stock has been so weakened that it is not intended, by the workers remaining, that another colony should issue during the season, the first queen who emerges is allowed to destroy all her royal sisters remaining in the cells, and she, at once, avails herself of the opportunity of so doing. If, on the other hand, the amount of the on-coming brood is very large, and it is manifest that again the hive will become too crowded, the queen is restrained from her murderous propensities. She resents this interference by uttering the sharp cries of "peep-peep," previously mentioned, and is answered in similar tones by her still imprisoned rival sisters. This is a sure sign of the approaching emergence of a second colony. Within two or three days of the piping being heard, the expected event takes place, though occasionally it may be delayed, by cloudy or wet or cold weather, till the fifth day. Such a second exodus is called a "cast." Sometimes in the excitement of "casting" several young queens, who have been under guard, will escape; and as many as five have been known thus to issue with a second swarm: indeed, Langstroth mentions one instance of _eight_ queens having thus left the parent stock at one time. Of course, when such an event occurs, if all are hived with the general cluster, they will fight till one only is left to enjoy supremacy in the community. If the settling of the swarm takes place in two or three places, it is pretty sure that more than one queen has come forth. It is best then to search for one or more, and to remove them, to be used, if necessary, in other hives, and then to unite the separate clusters. To third and later swarms from the same hive, the fanciful names of "colts" and "fillies" have been given, but they are going out of general use. Swarms subsequent to the first are usually less than it in amount of bees. For this reason it is advisable not to make them into separate stocks, unless very strong, but either, after removing the queen, to return them to the parent hive, or to unite two or more casts, so as to form one strong colony. It may be remarked that there is this advantage about a cast, that all the bees, queen included, are young, and so are likely to work with vigour; and if sent off early in the season, and naturally or artificially strong in numbers, they may become a powerful community: but everything will depend upon the two conditions just mentioned.