; | ne ee 
3 +9 ile Moving of Rocks by Ice. 
‘ 
a. ee dhe soundness of my conclusion with sa 
rocks, might easily be tried, if any o 
living i in Bete Bere would for several successive ie 
measure their distance from some fixed object, such as a 
tree, both before and after the freezing season. If all the 
motion was accomplished during the freezing season, my 
conclusion would be rendered certain. 
Art. XXIII.—Remarks on the moving of gy by Ice; ma 
letter to the Editor, from J. Woop, Esq. 
: ss, Sramrorp, Conn., Dec. 18, 1824, 
on: 7s: 
"J opserven in a late number of the Quarterly Review, 
a short time since, a criticism on Dr. Dwight’s Travels in 
among various interesting extracts 
, is the account of the moving rocks in 
or Premelens it as eatpliceble’ If I Fenieeaiics Ae 
the same account was published some time since in your 
Journal of Science, as a phenomenon yet unexplained ; 
the “~ obvious r philosnphieal prince iple 
m the account it appears, that the nd all approach 
near "tb, or project above the surface of the water. In the 
winter, when the surface of the water freezes, the ice 
must attach itself strongly to the tops of the rocks, 
wherever it comes in contact with them. — Thus grappled, 
rapidly nearest the shores of the pond, and therefore, in 
the gradual progress of its dissolution, becomes detached 
