Marcou. | 
214 
[Jan. 21, 
Pointe-Levis. — On the southern side of the St. Lawrence 
river, opposite Quebec-city, the Taconic strata occupy the whole 
area as far up the river as St. Nicholas, twelve miles above 
Pointe-Levis, where a tongue of Utica slates has been inclosed in 
and over the Taconic slates, by a landslide. Twenty-six years 
ago, I published a detailed paper on the geology of Pointe-Levis, 
entitled : “Notice sur les gisements des lentilles trilobitif&res ta- 
coniques de la Pointe-Levis, au Canada.” ( Bull . Soc. geol. France , 
vol. xxi, p. 236, Avril 1864); accompanied by a carefully made 
plan of the outcrops of fosiliferous magnesian limestone, and by a 
section taken from the main street of L6vis at the Croix-de-Tem- 
p6rance in a south-easterly direction. 
As a lithological confusion in regard to conglomerate has been 
maintained until now by the geological survey of Canada, I shall 
give another section (fig. No. 7) taken a little farther east than 
the one published in 1864, from the shoal, at low tide of the St. 
Lawrence river, to the church of St. Joseph and the top of the 
Redoubt or Notaire Gay’s quarry. 1 
Explanation of the section fig. No. 7 :) Close by the river 
there is a pudding-limestone, heavily bedded, formed of a matrix 
of blue limestone containing, disseminated irregularly, a certain 
number of large pebbles of another grayish limestone. No fossils 
had been found yet in either the matrix or the pebbles. The strata 
dip south-south-east, at an angle of sixty degrees, and their strike 
is east-east-north, to west-west-south, pointing directly toward 
the southern part of the citadel of Quebec. Those blue-pudding 
limestones of the upper part of Pointe-Levis group can be seen in 
1 During the last Franco-English war, in 1759, a redoubt was roughly built there, 
on account of its commanding position over the St. Lawrence river and the country 
around. After being taken by the English, it was promptly dismantled, and 
nothing remains of it, except the name of the “Redoute’’ kept among the French in- 
habitants. The Notaire Gay, proprietor of the place, came to see me, when I was 
working the geology of that part of Pointe-Levis, and gave these details, as well as the 
name of the road to Arlaka, having the kindness to write himself the name Arlaka, 
which resembles Arthabaska, another Indian name. The geological survey of Can- 
ada have lately called in question both names ; saying that I have styled the mass of 
limestone found on the Arlaka road by the name of the “Redoubte,” spelling Harlaka 
with an h . It is well known that a certain contempt always exists for the French- 
Canadian called “Cannuck,” and their noble defence of their country against the 
British army. But notwithstanding the stricture of the Canadian geological survey 
the facts are that above the St. Joseph’s church, the principal knob of limestone is 
called the “Redoute,” and the old Indian village of Arlaka is spelled without an h, by 
the French inhabitants, the best judges in the question. 
