Knowles — Report on Prehistoric Remains. 187 
some confirmatory evidence before accepting the age of the middens 
in question to be of so recent a date. ISTo doubt descendants of the 
people of the kitchen middens may have continued to exist in the old 
way in small islands and less favoured spots after the introduction of 
a superior culture, but, as regards the stations I have reported on, no 
intermediate layer, with relics, occur in the many feet of sandy 
covering we sometimes see above the layer containing the flint imple- 
ments, and therefore I believe that when the superior culture did 
come the flint-workers of the coasts were either absorbed or extermi- 
nated, and the sand-hills ceased to be occupied as dwelling-places. 
