—— _albeola_—Buffle-headed duck. —— _boschus_—Wild duck. —— _sponsa_—Summer duck. —— _marila_—Scaup duck. —— _acuta_—Pin-tailed duck. —— _glacialis_—Long-tailed duck. —— _clangula_—Golden-eye. —— _Americana_—American widgeon. _Mergus serrator_—Red-breasted merganser. —— _cucullatus_—Hooded do. REPTILIA _Testudo clausa._—This is our common land tortoise. It rarely, if ever, enters the water voluntarily, and is therefore decidedly terrestrial. _Testudo (Emys, Brogni.) geographica, Lesueur._ —— _ ( do. do. ) serpentaria_—Serpent tortoise. —— _(Trionix, Geoff.) ferox_—Fierce tortoise. _Lacerta (Agama) undulata, Daud._ —— _(Scincus) 5-lineatus._ _Coluber constrictor_—Racer. —— _ordinatus_—Garter snake. —— _heterodon_—Hog-nose snake. _Crotalus horridus, L._—Banded rattlesnake. —— _durissus, L._—Diamond rattlesnake. _Rana pipiens, Daud. (R. Catesbeana, Shaw.)_—Bull-frog—Ohio. _Rana helecina, Kalm. Daud. (R. pipiens, Schreb. Shaw.)_—Shad-frog—Ohio. _Rana clamata, Daud._ —— _(Hyla) occulars, Daud._—On the Ohio, near Shippingsport. This species is subject to vary considerably. In addition to the lateral vitta, it has sometimes three dorsal vittæ: other specimens have a remarkable cruciform mark on the back. _Rana (Hyla) femoralis, Daud._—Ohio. —— _(Bufo) musicus_—Common toad. {268} _Salamandra subviolacea, Barton_—near Shippingsport. —— _longicauda, Green_—near Pittsburgh. —— _rubra, Daud._—Ohio. —— _cinerea, Green_—near Shippingsport. —— _(Triton, Laur.) Alleganiensis (Salam. gigantea, Barton)_—Pittsburgh. The following observations were made, relative to the arrival and departure of birds at Engineer Cantonment. A few notes are added, which were made at Pittsburgh and other places. _Vultur aura_—Arrived April 2. 1820. On the Ohio, observed May 9. 1819. _Falco haliœtus_—Flying north May 17. 1820. —— _furcatus_—Was seen 20. The Falco and Strix families generally winter here. _Tanagra rubra_—Arrived May 1. 1820. At Pittsburgh, arrived April 29. 1819. _Muscicapa olivacea_ arrived April 30. 1820. —— _cantatrix_— 30. —— _ruticilla_— 28. 1820. On the Ohio, observed May 8. 1819. _Muscicapa fusca_ arrived March 22. 1820. —— _pipiri_— May 7. 1820. On the Ohio, observed May 8. 1819. _Turdus fuscus_ arrived April 28. At Pittsburgh the 14th. _Turdus aurocapillus_ arrived April 26. 1820. —— _aquaticus_— 26. —— _migratorius_— 11. —— _felivox_ observed on the Ohio, May 8. 1819. —— _rufus_ do. do. 2. 1820. _Certhia palustris_ arrived April 15. 1820. _Sylvia striata_ — 26. —— _azurea_ — 28. —— _sialis_—a few remain all winter. _Hirundo pelasgia_ arrived May 1. 1820. At Pittsburgh, arrived April 27. 1819.