334 The American Geologist. May, 1895 
on tlie approximatoly level country of the Cambrian, and on the most 
elevated ground, as Harvey hill, at 1,500 feet. Scattered pieces of gneiss 
here must have come from the north side of the St. Lawrence. "It is 
difficult to conceive, either on the theory of local glaciers or on that of a 
great ice-sheet, how these scattered boulders could have been deposited 
on the high levels of the interior, since on the former hypothesis the 
local glacier could have had no connection with the source of the boul- 
ders, and on the latter I lie ice-marUings indicate that the course of the 
glacier could not liave carried boulders from the hills along tiie north 
side of the St. Lawrence, across the great valley of that river, to the 
crest of the opposite ridges 1,500 feet or more above the sea level." The 
alternative theory, which he advocates, is that of submergence and the 
transportation b.y floating ice. 
The difficulty of the transport of btnilders from lower to higher levels 
is not a proof that floating ice did the work. I shall only aggravate Mr. 
Ells' difficulty by citing several cases that have fallen under my obser- 
vation, of similar transport on the highlands, which go to i)rove that 
the general movement of the ice in its maximum development was to 
the .southeast, and from the lower St. Lawrence level to the highest 
New England watershed. 
1. Boulders ten feet in diameter of the peculiar breccia of Owl's 
Head, on Lake Memi)hremagog, have been carried to a hight of 1,700 
feet in Brownington, Vt. This has involved sixteen or seventeen miles 
of transportation southward and as much as 900 feet of elevation. (Vt. 
Report, vol. i, p. (i.S.) 
2. Several boulders of Laurentian gneiss, each about a foot in length, 
were noted by me in Clarkesville, N. H., some fifteen to seventeen miles 
south of the international boundary. In the same neighborhood are 
many small boulders of jasper, recognizable as originating from the au- 
riferous range passing through Sherbrooke, BO or 40 miles away at the 
north. I made no special search for these boulders, and only noted 
them incidentally. 
3. The same, only larger and quite abundant, have been noted east 
of the Grand Trunk railway in northeastern Vermont at an altitude of 
1.800 feet. They are very common in Norton, Vt. 
4. In my first report upon the Geology of Maine (1SG2, i)age 41(5), I 
described blocks of Laurentian gneiss, twelve feet in length, upon the 
hills back from Fort Kent, Me., upon a .southern slope. This was more 
than 1,000 feet above the sea, and the .southward transport probably ex- 
ceeded one hundred miles. 
5. Recent thorough studies of the White mountain watershed (Bul- 
letin, G. S. A., vol. V, pp. 35-37) prove that this highest range in New 
England has been glaciated from the northweston every summit and in 
every col, and that fragments of rocks from the northwest are every- 
where upon them. No Laurentian or Canadian rocks have yet been rec- 
ognized upon them, but there are cases of elevation of more than I!, 000 
feet, and transport of 25 to 30 miles southeastward. 
G. Mt. Katahdin, a mile high, in northern Maine, is covered to a 
