98 Scientific Intelligence. 
will be rounded pebbles (havin 
touched in its course)—this sam 
conjecture there my 
hill-bottom? Yet 
final results of the movem 
$ 
floor for human life 
Now all this is utterly independent of any action whatsoever tf 
ice on its sustaining rocks. It has an action on these, indeed ; but 
limited nature, as compared with that of w. A stone at 
of a stream, or deep sea-current, necessari 
