WEST VIRGINIA.

(Map [25].)

1. Mahan, Brooke County.—In 1902 (Science, n. s., vol. XVI, pp. 707–709, fig.), J. B. Hatcher reported the finding of a part of a skull of Symbos cavifrons at a point in Brooke County, somewhat over a mile below Steubenville, Ohio. The locality is further defined as being the sand-pit of the Steubenville Sand Company, on the Thomas Mahan farm, on the east side of the Wheeling branch of the “Panhandle” Railroad. The details regarding the locality were furnished by Mr. Sam Huston. The sand-pit was located in the glacial terrace which rises about 70 feet above low-water mark and from about 35 to 40 feet above high-water. The river has never been known to rise as high as to the spot where the skull was found. It had doubtless been brought down by the waters which built up the terrace. These waters probably came from the Wisconsin ice-sheet. The skull is now in the Carnegie Museum at Pittsburgh.

The interesting geology of this region is described on page [355].