342 SCIENCE PROGRESS. 



the natives to such objects, and to the almost complete 

 diversion of trained research into more obvious and attrac- 

 tive departments ; partly also to the comparative rarity, 

 except in Egypt, both of workable flints and of the high- 

 level gravels in which they are usually preserved. From 

 Greece itself only one palaeolithic implement is recorded 

 hitherto ; a flint celt from Megalopolis in Arkadia (Rev. 

 Arch., xv., 1 6 ff). 



12. Neolithic Man, however, can be traced over the 

 whole area. Masses of hard crystalline rock are frequent 

 and accessible, and furnished implements of characteristic 

 types ; short full-bodied celts, more or less markedly 

 conical behind, and ground to a rather obtuse edge. Ob- 

 sidian was largely exported from Melos and Thera to the 

 neighbouring islands, and to the mainland of Greece, and 

 was worked up at Korinth and on several sites in Attica. 

 Jade of good quality was sent from Asia Minor outwards 

 across the yEgean ; but it is not yet clear whether the 

 source of the common green variety is in Asia Minor itself 

 or further east : the jade implements become commoner 

 eastwards, and the finest collection from anysingle neighbour- 

 hood is that brought by Mr. D. G. Hogarth in 1894 from 

 Aintab in N. Syria (Ashm. Mus., Oxford). 



13. Tombs of this stage of culture have not been found 

 — or sought — in sufficient numbers to justify discussion or 

 to contribute any facts of importance. The necropolis of 

 Psemmetismeno in Cyprus, for example, contains besides 

 typical early Bronze Age tombs a still more primitive class, 

 in which the pottery is exceedingly rude, and the charac- 

 teristic red-polished ware of the early Bronze Age is 

 wanting ; but though bronze is absent, no stone implements 

 are present. On the other hand the few tombs recorded 

 as containing stone implements are brought down by their 

 general character well within the Bronze Age. 



14. Exception must however be made in favour of the 

 Nile Valley, for Professor Flinders Petrie in 1895 found, 

 at Ballas and Nagada, both tombs and villages of an 

 invading race, apparently Libyan, which had brought the 

 art of flint working to unequalled proficiency, and remained 



