92 The American Naturalist. [January, 2 : 
To argument (5) it may be said that European Drift deposits are 
really analogous to our Riverside workshops where Indian relics are 
plenty, and not to quarries; while if we do compare them to quarries — 
Indian relics have been found in my knowledge, at four. Realizing 
this we see no reason why polished implements should not be 
found in the Drift if the Drift Men made them. The 6th argument as — 
to the destruction of pottery in washing gravel seems conclusive — i 
against expecting to find it there. 
Thanks are due to Mr. McGuire for his exceedingly interesting and 
suggestive paper which should suffice to induce revision of the Europai 
Cave classification in which as it suggests there may be serious flaws. 
