42 NEW YORK STATE MUSEUM 



island) the bed of the river south of that place remained at the level 

 of the gravel on Goat island (page 22.)" 



The evidence presented above shows that the gravels in which 

 the mastodon remains were found were deposited when the falls 

 were nearly 2 miles farther down stream. The time required for 

 excavating this upper section of Niagara gorge gives some basis for 

 estimation of the time since the bones were imbedded in the gravels. 

 The estimate for the time required to cut the Upper Great gorge 

 (about 2% miles) has been given as a minimum of 3000 years and 

 a maximum of more than 20,000 years, so that it may not be an 

 exaggeration to say that the mastodon whose tooth was found at 

 Niagara Falls lived 15,000 years ago. 



Ontario County 



47 1885. Seneca. These remains were found at Seneca Castle 

 in the town of Seneca, 6 miles northwest from Geneva. The exact 

 elevation at which the bones were found is not available, but Seneca 

 Castle is at an elevation of 762 feet and the bones must have been 

 obtained somewhere near this altitude. An account of the discovery 

 of these bones was communicated to Science by Prof. E. Hitchcock 55 

 in 1885. A later account by Clarke 50 ' is as follows: "Excavated 

 by Henry J. Peck on farm of Charles Gregory, where the bones 

 had been discovered about 1882. Found beneath marl and diatom 

 earth, about 3 feet from the surface. Sixty-five bones were ob- 

 tained, mostly ribs and vertebrae with one tusk, 9 feet on outer 

 curve, and styloid 1 inch longer than in the Warren mastodon. The 

 antler of an elk was also found. The bones are now in the collec- 

 tion of Amherst College. H. J. Peck " 



Accompanying the above account by Clarke, is a plate with scale 

 showing the distribution of the bones and a section of the bedded 

 deposits of the swamp. 



48 1908. Manchester. All the knowledge that we have con- 

 cerning this find is that a tooth 57 was found on the property of 

 Leonard S. Lyke in the year given. 



Orange County 



49 1780. Montgomery (3 miles south). The earliest definite 

 record of Orange county mastodon remains is given by the Rev. 

 Robert Annan 58 in an article entitled, "Account of a Skeleton of a 



Science, 1885, 6:450. 



N. Y. State Mus. Bui. 60, 1903, p. 931. 



Clarke, N. Y. State Mus. Bui. 140, 1910, p. 46. 



Amer. Acad. Arts and Sci. Mem. 1793, 2:160-64. 



