(Map 3.) 1. _Green Brier County._—In a cave situated somewhere in this county were found the bones described in 1799 by President Thomas Jefferson (Trans. Amer. Philos. Soc., vol. IV, pp. 246–260) under the name _Megalonyx_. Colonel John Stewart became interested and saved some of the bones from being carried away by curious inhabitants of the region. The bones, a distal end of a femur, a complete radius, a complete ulna, three claws, and some other foot-bones were secured and presented to the American Philosophical Society of Philadelphia, from which they passed into the possession of the Academy of Natural Sciences, where they are still preserved. Some of these were described by Dr. Caspar Wistar (Trans. Amer. Philos. Soc., vol. IV, 1899, p. 526, plates I, II). Inasmuch as this species may have existed during a large part of the Pleistocene and certainly after the passing of the Wisconsin epoch, and inasmuch as no other species were found associated with the megalonyx bones, it is impossible to say to what part of the Pleistocene that particular animal is to be assigned. SOUTH CAROLINA. (Map 3.) 1. _Beaufort, Beaufort County._—In the Charleston Museum the writer has seen a left lower canine tooth of _Megalonyx jeffersonii_. The fore-and-aft diameter is 34 mm., the transverse 18 mm. It is recorded as found in dredging in Coosaw River. Tuomey (Rep. Geol. South Carolina, 1848, p. 203) found fragments of bones, probably belonging to _Megatherium_, on Eddings Island, about 10 miles south of Beaufort. 2. _Charleston, Charleston County._—In 1855, Doctor Leidy (Smithson. Contrib. Knowl., vol. VII, p. 55) stated that Professor F. S. Holmes, of Charleston, had loaned him fragments of two very small teeth of _Megatherium_ found on the shores of Ashley River. These were figured by Leidy in 1860 (Holmes, Post-Pl. Foss. South Carolina, p. 111, plate XX, figs. 8, 8_a_). In a collection belonging to Rev. Robert Wilson, in Charleston, the writer has seen a tooth of _Megatherium_ found by the Charleston Mining Company in Ashley River. G. E. Manigault (Proc. Elliott Soc. Nat. Hist., 1886, p. 91) reported the finding of a claw phalanx of _Megalonyx_ at Cainhoy, 12 miles from Charleston, on Wando River. In the Charleston Museum is a part of the right side of the upper jaw of _Megatherium_, with the second and third teeth and parts of the sockets of the first and fourth. It is recorded as having been found in the Bolton phosphate mine on or in Stono River. There is in the same museum a fragment of the left side of the lower jaw of the same animal. This jaw contains the second and third molars and parts of the socket of the first and fourth. It is recorded as having been found in the Kiawah phosphate mine, Cooper River.