The next day, July 19th, we saw the rudiments of two royal cells thatsome bees had outlined upon one of the brood combs. In the evening, at the same hour as the preceding day, we again heard a loud buzzing in the enclosed hive, the agitation and disorder being manifested at the highest degree; we were again obliged to let the swarm escape; but it was not out long; the quieted bees returned as before. On the 20th, we noticed that the royal cells had not been continued as they would have been in ordinary conditions. A great tumult took place in the evening, the bees appeared in delirium; we set them at liberty and order was restored on their return. The captivity of these bees having endured five days, we thought it useless to protract it farther; besides we wished to know whether the brood was in good condition, whether it had made the usual progress, and try to discover what might be the cause of the periodical agitation of the bees. Burnens having exposed to the light of day the two combs of brood which he had given them, he first noticed the royal cells, but did not find them enlarged; indeed why should they be, since they contained neither eggs nor worms, nor that peculiar kind of jelly given to the individuals of their class? The other cells were vacant also; no brood, no pap; the worms must have died of hunger. By removing all the focundating dust, had we taken away from the bees all means of nourishing them? To decide this question it was necessary to confide other brood to the same bees to care for, while giving them abundance of pollen. They had not been able to make any harvest while we examined their combs; for on this occasion they had been set at liberty in a room all the windows of which were closed; after having substituted young worms for those which they had allowed to perish, we returned them to their prison. The next day, the 22d, we noticed that they had resumed courage; they had strengthened the combs which we had given them and were clustered upon the brood. We then provided them with fragments of combs into which other bees had stored up fecundating dust; but in order to observe what they would do with it, we took some of the pollen out of a few cells and spread it upon the hive stand. The bees immediately discovered both the pollen in the combs and that which we had exposed; they crowded upon the cells and also upon the bottom of the hive, took the pollen, grain by grain, in their mandibles and conveyed it to their mouths: those that had eaten of it the most greedily climbed upon the combs before the rest, stopped upon the cells containing the young worms, inserted their heads in them and remained there for a certain time. Burnens opened gently one of the windows of the hive and powdered the workers which were eating pollen, for the purpose of recognizing them when they would ascend upon the combs. He observed them during several hours and by this means ascertained that they took so great a quantity of pollen only to impart it to their pupils. On the 23d we saw royal cells outlined; on the 24th we removed the bees which concealed the brood and found that all the young worms had jelly as in the ordinary hives, that they had grown and had advanced in their cells; that others had been lately closed up because they were nearingtheir metamorphosis; finally we had no longer any doubt of order being restored, when we saw the royal cells lengthened.