22 Annals of the South African Museum. 



This palaeolith is 137 mm. wide and 66 mm. thick. It weighs 

 26 oz., and is of rude manufacture, due certainly to the nature of 

 the rock. A part of the original shape of the nucleus has been 

 retained at the butt, and it is trimmed on both sides." I have seen 

 another boucher made of the same material but smaller, and unlike 

 any other that I have seen. It is in the shape of a transverse 

 wedge, blunt at the top and tapering thence to a fairly sharp edge, 

 intended probably for cutting. It is the property of Mr. F. White, 

 of Bulawayo. 



Large bouchers made of chalcedony seem to be, however, very 

 rare, but some of moderate sizes have been found ; they pertain, 

 though, more to the scraper-knife type (PI. XX., Figs. 121, 122). 



Implements made of similar material have been lately found in 

 German South-West Africa (PI. XIX., Fig. 147), but they can in 

 nowise be compared with bouchers. They ai'e plainly ostrich egg- 

 shell borers, and if they are made of the same material as that of 

 some of the large bouchers of the Zambesi Valley, it is due to the 

 fact that silicious rock, and perhaps no other exposed one of hard 

 texture, was available. 



Together with these chalcedony implements, quartzite bouchers 

 have been found in the so-called river gravels of the Zambesi,! 

 but these implements must, at least provisionally, be ranged like 

 those from Charter (PI. IV., Figs. 30, 31, 34), among the Orange 

 River type. 



* Mr. Balfour informs me that he found several examples, together with non- 

 silicious ones. 



f Discussing before the Geological Society the occurrence of stone implements 

 in the neighbourhood of Victoria Falls, Mr. T. Codrington states that he found 

 four implements of a palaeolithic type ; " the thi-ee of brown quartzite are very like 

 implements from Iiidia, labelled in the South African Museum as greatly resembling 

 South African implements in material and workmanship " (Quart. Journ. Geolog. 

 Soc, Aug., 1909, vol. Ixv.). 



