ti Scientific Intelligence. 
a brief but clear and readable pat ge of the er: of storms: 
The subject is one which now compels serious attention in certain 
parts of the country, and this concise exposition is consequently 
very opportune. 
II. Grotogy AND NaturAL History. 
1. The ely’ sis Ag Maine ; by Groree H. Sronz, of Col- 
streams. 
During an exploration of Maine which continued for about five 
years, I had opportunity to examine many thousands of sections 
of the till throughout the greater part of the state. I have never 
found stratified or even water-classified material enclosed in this 
formation, except within a few miles of the coast, or so near to the 
surface as to leave the interpretation in doubt. Hundreds of 
miles’of the beds of the inland streams have been examined by me, 
and if water-washed material exists in the till in the interior of 
the state, it must be rare. But near the coast, as for instance 
8 
at Portland, one may see II es of sand nearly or quite 
surrounded by the unmodified till, the clayey till being in such con- 
trast with the clean, siliceous sand, that the difference in compo 
sietting of a glac e white color and porous structure of the 
surface ice of a lusts show where most of the melting takes 
place. This superficial water flows along the surface, or i ps 
wear and melt a deeper and deeper channel until it disappears dow 
some crevasse and becomes a sub-glacial stream. Modern lasiees 
show a difference in their glacial streams. Near the lower ex-_ . 
kent 
tremity almost allthe water is sub-glacial. The ice is so broke 
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