98 E. Desor on the Drift of Lake Superior. 
the waves. Indeed, there is every probability that all sand 
sandstone formations which exhibit a similar structure have been 
formed in shallow water—an inference which, as far as the drilt 
is concerned, is confirmed by other considerations, which we 
stone or sandstone, is sufficient to excite the curiosity of every 
thinking man, as to the place from which this stranger may have 
of the drift should refer chiefly, if not exclusively, to the bouk 
ders. From looking at them in a too exclusive point of view; 
a whole, they did not strike me by their dimensions. They ¢ 
not by any means equal those huge masses found in Switzerland 
and in many parts of New England. The largest boulder whic! 
