274 COMPAiRil'SOiN OF THE TASiMAiNIAiN TRONiATTA. 



sion can be seen on several specimens. One specimen 

 which has been determined by Dr. Rutot, " Percuteur 

 tranchant;" shows a fine smooth poHical face, and on the 

 indical face the traces of misspent blows can be seen, 

 exactly as they can be observed on numerous specimens 

 from Tasmania. 



The same remarks apply to the specimens from the 

 Cantalien. In the collection from Puy de Boudieu the 

 specimens attain considerable size and weight, though it 

 is certain that, exactly as in the case of-4h€ tronatta, the 

 implements of 4 ounces and under form far the majority. 

 On the whole these specimens do not show a very care- 

 ful treatment of the indical face. I am unable to give an 

 explanation for this except the nature of the flint. The 

 specimens from Puy de Boudieu were manufactured from 

 rather thin, flattish pieces of flint, which by their nature 

 had a pollical face, and, being comparatively thin, not 

 much trimming of the indical face was required. A few 

 specimens, and apparently mostly those that represent 

 flakes detached from a larger piece, shovv' a fair amount 

 of trimming of the indical face. 



If we now leave the tertiary and turn to the industries 

 of the glacial period and those that immediately preceded 

 it, I am unable to ofTer an opinion about the implements 

 of the Kentien and Saint Prestien industries. To judge 

 from the figures it appears, however, that River-drift im- 

 plements already represent a much higher than the 

 archaeolithic stage. The few archaeolithic implements 

 found in England are probably of that kind that was used 

 simultaneously with implements of a higher stage, and it 

 almost appears that a true archaeoHthic industry did not 

 exist in Great Britain. 



The oldest of the trrrhTFtrres of the glacial period is 

 the ReuteHen, of Belgium. The implements of this in- 

 dustry are as crude as those of the earlier tertiary indus- 

 tries ; there are, however, several specimens from Elouges 

 showing a considerable amount of treatment of the indical 

 face. Among the specimens belonging to this industry 

 which Dr. Rutot kindly sent me are a number of rough 

 and insignificant-looking pieces from Leval. 1 had not 

 the slightest doubt that numerous scientists were not in- 

 clined to consider these specimens as treated by human 

 beings; yet I could place side by side to every one of 



