In addition to this, the bees form collections of erithace or bee-bread, which some persons call "sandaraca,"[1] and others "cerinthos." This is to serve as the food of the bees while they are at work, and is often found stowed away in the cavi- ties of the cells, being of a bitter flavour also. It is produced from the spring dews and the gummy juices of trees, being less abundant while the south-west wind is blowing, and blackened by the prevalence of a south wind. On the other hand, again, it is of a reddish colour and becomes improved by the north-east wind; it is found in the greatest abundance upon the nut trees in Greece. Menecrates says, that it is a flower, which gives indications of the nature of the coming harvest; but no one says so, with the exception of him.