In Rutgers College, New Brunswick, New Jersey, the writer has seen a tusk about 10 feet long, with a considerably spiral form, which is said to have been found at Ellenville. It may, however, be the tusk of an elephant. 25. _Poughkeepsie, Dutchess County._—In 1854 (Amer. Jour. Sci., vol. XVIII, p. 447), an editorial paragraph stated that a skeleton of a mastodon had been found buried in a marsh about 2 miles east of Poughkeepsie. It had then been only partly exhumed. Clarke (Bull. 69, State Mus., p. 927) quotes from a letter written by Professor W. B. Dwight, who stated that about 40, perhaps 45, years previously mastodon bones had been found in a small pond on the “Creek Road,” from 2 to 3 miles northeast of the city named. Probably the same skeleton was referred to by both writers. Clarke stated further that there is in the State Museum a vertebra of a mastodon from Poughkeepsie. 26. _Between Red Bridge and Wurtsboro, Sullivan County._—In 1828 (Amer. Jour. Sci., vol. XIV, p. 31), J. Van Rensselaer reported that remains of a mastodon had been found by workmen digging the Delaware and Hudson Canal, near the point named. A considerable part of the skeleton had been secured. Mather (Geol. 1st Dist., p. 233) adds that this was found in a peat-bog. 27. _Claverack, Columbia County._—Somewhere near this place, not improbably on the opposite side of the river, in Greene County, were found apparently the first mastodon remains discovered in this country. In his “History of Orange County, New York,” Eager published a letter addressed in 1706 by Governor Joseph Dudley to Cotton Mather. In this he told of having secured a tooth which was probably a penultimate molar of a mastodon. Dudley regarded it as the eye-tooth of a giant who had been destroyed by the flood. The locality was given as about 30 miles below Albany and was mentioned as Claverack. It appears that another tooth had been presented the year before to Lord Cornbury. In the account of this, found in a letter by Lord Cornbury, the locality is given as 20 miles below Albany. Clarke (op. cit., p. 928) thinks that this was probably near the present New Baltimore; but a letter from Abeel, recorder of Albany County, published by Clarke, shows that a man was sent to Claverack to make further search. It appears as if 2 teeth had been discovered at the same place near the town. Abeel stated that the tooth had been found near the bank of the river, and that other bones were met with 15 feet below the surface. It appears not improbable that these bones were buried in clays laid down during the Late Wisconsin submergence or in deposits overlying these clays. 28. _Freehold, Greene County._—Clarke (op. cit., p. 927) stated that there is in the American Museum of Natural History, New York, an atlas of a mastodon which was found at Freehold.