chipped away the surface within it or the lines along it. The labour required for such a task, without metallic implements, must have been great, and the workman was undoubtedly possessed of much patience. He was a sculptor in the elementary stage of the art. Mr. Stow believed that the engravers and painters were distinct branches of the race, and 
Engraving of a zebra on a rock in the district of Vryburg.
(From a Photograph of a cast in the South African Museum in Capetown. The original is thirteen inches in length.) in his work he classified them as such. Dr. Lloyd, however, was of opinion that the method of delineating the figures depended merely upon the condition of the locality, the artists being the same, and with this view Messrs. Bain, Dunn, and other investigators agree.
The late Mr. R. N. Hall, the well-known archaeologist, who made very extensive explorations in Rhodesia, and who
