140 Proceedings of the Asiatic Society. [Sept. 



20 feet in thickness, but there is every evidence of its being thicker in 

 places. The implement gravels are generally in the stream sections, 

 over-laid nnconformably by a finer sandy deposit, with fine gravel, 

 which has been found on the worn surface of the older accumulations. 

 The same coarse lower gravels extend southwards to the Kuddapah 

 basin presenting like fractures ; and thence we find them at intervals 

 all the way down to the Madras area, where they contain the stone 

 implements of the Trivellore taluq and other localities examined by 

 Mr. Foote and myself nine years ago. The gravel and shingle is all of 

 quartzite on altered sandstone : generally well rounded and quite 

 smooth. For the most part, the clay is calcareous, the contained debris 

 being coated with kunkuv ; but often it is ferruginous and mottled with 

 red spots and patches of ferruginous matter, occasionally presenting a 

 lateritoid character. 



" While working up the Madaypoor stream, I examined the vertical 

 banks as closely as possible, and at last recognized the apparently 

 rounded and edged end of an implement just sticking out from the 

 shingle bed in the bank. This turned out to be a good specimen of 

 a pointed oval : it lay in one of the layers of pebbles and rectangular 

 fragments of quartzites which occur in a thick bed of ferruginous and 

 lateritic sandy clay ; at seven feet below the present upper surface of the 

 bank. Nearly immediately above this layer, at about four feet from the 

 surface, I picked out a second implement of a ruder shape : still 

 a pointed oval, but rather thick than flat, as the ovals generally are. 

 This was from another layer of coarse gravel which appeared to be 

 the bottom of a newer set of gravels than that containing the 

 first specimen : but I found afterwards that these apparently se- 

 parate deposits run into each other by lenticular tailings. At 

 the bottom of this bank and section, there is a very coarse gravel 

 and breccia in a kunkury matrix, which partly forms a little talus or 

 foot at the base : and from the surface of this, cemented witli the 

 rest of the shingle, I extracted another rude implement. It is broken 

 at its longer end, and was flatter and not so pointed at this extremity 

 as either of the others. It may possibly have fallen out of the bank 

 above, and become cemented with the debris at the base. 



" Again, some seventeen miles further south, I found two implements 

 in situ in the banks of the Ullamoor stream. They were associated 



