On Bowlders and Rolled Stones. 35 
When mixed as it generally i is witha little clay. lime, and 
vegetable mould, it forms a very productive nb _ every 
hill. on every mountain, where there is room for the plough 
or hoe. Had it not been for this very Fico dees ah 
of grinding the granite and other rocks to powder, to dust, 
and preparing the soil in that way, New-England, (which 
now with proper cultivation is very productive,) could not 
probably have been inhabited, and indeed but a small, if 
any, part of the earth. For, undoubtedly, the rich mead- 
ews and extensive valleys, owe their present form so con- 
venient to man for tillage, as well as the richness of the 
soil, in a great measure to the same cause. The fact being 
once established that the earth was long covered with wa- 
“ter, it would seem to account at once for those rounded, 
and other rocks found every where i = ascending streams 
and hills, although no similar rocks shouid be found in the — 
rr 
higher situations immediately semignais: hose block 
perhaps were detached by ice from their native beds, and 
being rounded and transported by the currents, might be 
deposited any where at random. Floating ice at the 
present day, often transports large and small fragments of 
rocks from remote regions, and deposits them in more 
southern latitudes, and they often become rounded by sub- 
sequent attrition. The waters appear to have formed al- 
so the cavities of ponds in every stream where there is a fall 
_of water into sand or loose earth, the water heaving up the 
sand at the spot where it strikes, then carries it forward, and 
the sand of course grows more and more shallow. Exact- 
ly in the same manner the earth appears to have been ex- 
cavated to form the basins of ponds. No waters but those 
of the ocean could i In most cases have been the cause of 
ns. 
remarked that the vallies that shoot up 
between me have invariably, at their outlet, adepos- 
Tob eeyd = fact which | will illustrate by a single exam- 
ple. This valley lies between two hills which are six or 
seven hundred feet high on the west side of Fairlee Pond. 
‘rom the sand a this valley, i it is is s but a little over a mile. toa a 
lay to the pond, northerly and to Waitt «River. "Phe waters : 
that flowed easterly, and passed between two hills over 
a ridge of rocks that was more than one hundred feet high- 
Be 
