1 With the exception of a single specimen of the bones of a foot, preserved in the cabinet of Amherst College.—E. R. L.
2 The primary stock of the ConiferÆ divided into two branches at an early period, into the AraucariÆ on the one hand, and the TaxaceÆ, or yew-trees, on the other. The majority of recent ConiferÆ are derived from the former. Out of the latter the third class of the Gymnosperms—the Meningos, or GnetaceÆ—were developed. This small but very interesting class contains only three different genera—Gnetum, Welwitschia, and Ephedra; it is, however, of great importance, as it forms the transition group from the ConiferÆ to the Angiosperms, and more especially to the Dicotyledons.
3 “Ueber ein Aequivalent der takonischen Schiefer Nordamerikas in Deutschland.”
4 The English word “Insects” might with advantage be used in the LinnÆan sense for the whole group of Arthropods. In this case the Hexapod Insects might be spoken of as the Flies.—E. R. L.
