So SCIENCE PROGRESS 



will be able in future to give more attention to the question of 

 the natural and artificial fracture of flint as affording the only 

 means of arriving at satisfactory conclusions regarding the 

 " humanity " or otherwise of the specimens which are the 

 subject of their study. Mere speculations as to the capabilities 

 of man or nature to flake flints in the remote past are, in the 

 author's opinion, of little value. 



