Had Dr. Darwin been acquainted with this fact, he would have adduced it as proving that insects can convey traditionary information from one generation to another; and at the first glance the circumstance of the descendants of the same stock retaining a knowledge of the same fact for twenty years, during which period there must have been as many generations of bees, would seem to warrant the inference. But as it is more probable that the party of surveying scouts of the first generation was the next year accompanied by others of a second, who in like manner conducted their brethren of the third, and these last again others of the fourth generation, and so on,—I draw no other conclusion from it than that bees are endowed with memory, which I think it proves most satisfactorily.

I am, &c.

END OF THE SECOND VOLUME.

[Plate V]

[EXPLANATION OF THE PLATES.]

PLATE IV.
Hymenoptera.
Fig.1.Sirex Gigas.
2.Evania appendigaster magnified.
3.Nomada Marshamella.
Diptera.
4.Pedicia rivosa.
5.Sericomyia Lapponum.
PLATE V.
Fig.1.Oxypterum Kirbyanum. Leach. magnified.
Aphaniptera.
2.Pulex irritans magnified.
Aptera.
3.Ricinus Pavonis magnified.
4.Aranea marginata. Donovan.
5.Chelifer cancroides magnified.
6.Scolopendra forficata.