NATURAL SCIENCES OF PHILADELPHIA. 165 



Eastern Tennessee and Western North Carolina. Tlie Blue Ridge 

 there attains its greatest development, both in width and altitude; 

 its width being from 50 to 70 miles, while more than 30 of its 

 peaks attain an altitude exceeding GOOO feet. The western border 

 range, called the Smoky Mountains, is as high as the eastern range, 

 styled the Blue Ridge ; yet all of the streams that drain this region 

 flow to the west, cutting deep gorges tlirough tlie Smoky Moun- 

 tains. Having visited this region on several occasions recently, 

 Mr. Willcox observed that the eastern and central portions of it 

 consist of gneiss rocks, while the western portion is composed of 

 other sedimentary rocks. It is presumed that tlie former was up- 

 heaved at a time long anterior to the elevation of the latter, and 

 the drainage system, having once been establislied to the west- 

 ward, continued its erosion during tlie subsequent elevation of the 

 Smoky Mountains. 



Mr. Willcox also stated that when recently in North Carolina 

 his attention was called to an unusnal method of burial by an an- 

 cient race of Indians in that vicinit3\ In numerous instances 

 burial places were discovered where the bodies had been placed 

 with the face up, and covered with a coating of plastic clay about 

 an inch thick. A pile of wood was then placed on toj) and fired, 

 which consumed tlie body and baked the clay, which retained the 

 impression of the bodj'. This was then lightly covered with earth. 



Notice of Remains of Titanotherium. Prof. Leidy directed 

 attention to two fossils recently received through Prof Ilayden. 

 They consist of an isolated last lower molar tooth and a lower 

 jaw fragment containing three teeth. The specimens are part of 

 a skeleton, most of the bones of which were found about one 

 hundred miles east of Greeley, Colorado. 



The last lower molar tooth is identical in character with that 

 referred to Titanotherium ProiUii (Ancient Fauna of Nebraska, 

 pi. xvii. figs. 8, 9, 10), except that its outer basal ridge is less well 

 developed. Tlie fore and aft diameter of the crown is three and 

 one-quarter inches; the width in front 19 lines. 



The teeth of the lower jaw fragment are either the last three 

 premolars, or the last two of these and the first molar. They are 

 like the corresponding teeth of Titanotherium Proutii. In all, 

 the crowns are bilobed. The series of three teeth measures, fore 

 and aft, four inches and five lines. The first of the series meas- 

 ures, fore and aft, 14^ lines; the second 16:^, and the third 21 

 lines. A large mental foramen is situated about an incli and a 

 half below tlie interval of the anterior two teeth. 



These remains I suspect to belong to the animal indicated under 

 the name of 31egacerops coloradensis (Extinct Vertebrate Fauna 

 of the Western Territories). This, from all the evidence I have 

 thus far seen, appears to be of the same genus as Titanotherium, 

 to which I also suspect the genus Brontotherium of Prof. Marsh, 



