The third mine, the most ancient in India, was situated near Sumbhulpoor, in Gundwana, at that period included, according to Tavernier, in the kingdom of Bengal. The diamonds were here found in the sands of the Mahanuddy, near its confluence with the Hebe; but our traveller strangely travesties the name of this river into _Gouel_, and, indeed, generally makes such havoc with names that there is often much difficulty in discovering what places are meant. However, when the great rains, which usually took place in December, were over, the river was allowed the whole month of January to clear, and shrink to its ordinary dimensions, when large beds of sand were left uncovered. The inhabitants of Sumbhulpoor, and of another small town in the vicinity, then issued forth, to the number of eight thousand, and began to examine the appearance of the sands. If they perceived upon any spot certain small stones, resembling what are called thunder-stones in Europe, they immediately concluded that there were gems concealed below; and having enclosed a considerable space with poles and fascines, began to scoop up the sand, and convey it to a place prepared for its reception upon the shore. Hamilton and other modern authorities, however, observe, that the diamonds are found in a matrix of red clay, which is washed down among heaps of earth of the same colour from the neighbouring mountains, and that in the sand of the same rivulets which contain the gems considerable quantities of gold are likewise discovered.