326 Canadian Record of Science. 
and the wriler abundantly prove this.’ In 1872 Sir 
William Dawson pointed out that “local glaciers had 
‘“¢ debouched into the St. Lawrence valley from the north 
“ following the valleys of the Saguenay and Murray Bay 
‘rivers, etc., and possibly also from the south.” But it was 
not until the year 1885 that positive evidence of a north- 
ward ice movement on the southern slope of the St. 
Lawrence valley was found by the writer.’ The following 
year Dr. Ells discovered similar evidence in the Hastern 
Townships confirming, beyond doubt, the above conclusion.* 
From a large number of facts adduced in the report referred 
to he infers that “local glaciers were shed on either side 
‘“ from the great mountain ridge along the Maine and New 
‘‘ Hampshire boundary. On the sonth-east slope of the 
‘“‘ boundary chain the striz are found to be about S. 65° E., 
‘““ while on the Quebec slope the general course is the 
“reverse, or N. 65° W. (true meridian.) About Lake 
‘‘Megantic and further south, in Ditton and Emberton, 
‘‘ however, a general N.-W. course was observed. Along 
‘the Chaudiere and Du Loup rivers, the strize, in general, 
“trend N. 55° W.”? During the two seasons since, Dr. 
Ells has obtained a large number of additional facts in this 
region, corroborating the foregoing conclusion and showing 
that local glaciers alone must have produced all the stria- 
tion from the summit of the Notre Dame or Appalachian 
mountain range to the St. Lawrence valley 
The grooves recorded in G'eology of Canada, 1863, pages - 
890-92, as occurring in this region, have also, it appears, 
been produced by northward moving ice.° 
‘Annual Report, Geol. Surv. of Can. 1886, Vol. II, 44-51 J; ibid., 
5-20 M; also Transactions Royal Soc. of Can., 1886, Sec. IV, Art. X. 
“Notes on the Post-Pliocene Geology of Canada, 1872. Canadian 
Naturalist, Vol. IV, No. 1, p. 30. 
"Transactions Royal Soc. of Canada, 1886, Sec. IV., Art. X. Geol. 
Surv. of Can. 1886, Vol. II, part M. 
‘Thid., part J. 
*Annual Report, Geol. Surv. of Can., 1886, Vol. II, 45 J. 
°Transactions Royal Soc. of Can., 1886, Vol. IV, Art. X. 
