What a mysterious circumstance is this: These royal scions simply receive a more abundant and sumptuous diet, and occupy a more ample habitation--for I have more than once confirmed the statement of Mr. Quinby, that the direction of the cell is immaterial--and yet what a marvelous transformation. Not only are the ovaries developed and filled with eggs, but the mouth-organs, the wing's, the legs, and the sting, aye, and the size, form and habits are all wondrously changed. That the development of parts should be accelerated, and the size increased is not so surprising--as in breeding other insects I have frequently found that kind and amount of food, would hasten or retard growth, and might even cause a dwarfed imago--but that it should so essentially modify the structure, is certainly a rare and unique circumstance, hardly to be found except here and in related animals. Bevan has suggested that fertile workers', while larvæ, have received some of this royal jelly, from their position near a developing queen. Langstroth supposes that they receive some royal jelly, purposely given by the workers, and I had previously thought this reasonable, and probably true. But these pests of the apiarist, and especially of the breeder, almost always, so far as I have observed, make their appearance in colonies long queenless, and I have noticed a case similar to that given by Quinby, where these occurred in a nucleus where no queen had been developed. May it not be true, that a desire for eggs stimulates growth of the ovaries, growth of eggs in the ovarian tubes, and consequent ability to deposit. The common high-holder, Colaptes auratus--a bird belonging to the woodpecker family, usually lays five eggs, and only five; but let cruel hands rob her of these promises of future loved ones--and wondrous to relate, she continues to lay more than a score. One thus treated, here on the College campus, actually laid more than thirty eggs. So we see that animal desires may influence and move organs that are generally independent of the will.