REVIEWS—GEOLOGICAL SURVEY OF CANADA. 467 
valley of the north tributary branch of the Ste. Anne and the valley of the Mar- 
souin the distance is twenty-four miles. In either direction roads could be easily 
constructed, while a great part of the way is well adapted for settlement. 
“Roofing slates, tile stones, and flagstones. The best roofing slates were observed 
on Henley’s Brook. The nearest exposure of the rock yielding them is about 
two miles and a half above the junction of the brook with the Marsouin, or about 
four miles from the St. Lawrenee, and it prevails for a breadth of two and a half 
miles up the valley of the brook. The slates might be obtained in thicknesses 
varying from an eighth to a quarter of an inch, and in slabs of eight or ten feet 
square, with very smooth surfaces. Some parts of the rock gave thicker slabs, 
measuring from two to three inches, and would serve as excellent flagstones. The 
color of the rock is a dark blueish-grey or black. Some bands of the slate are 
caléaréous, and these, for roofing purposes, should be avoided. 
“The same rock comes out in the strike upon the Marsouin River, from seven to 
nine miles from the St. Lawrence, and would here give a material of much the 
same character. 
« Allusion has already been made in the geological description to the flagstones 
of the Metis. They occur about twenty-six miles and a half from the mouth of 
the river, and consist of calcareous sandstones weathering to a light drab. Slabs 
might be obtained of two feet square, with thicknesses ranging from two 1o four 
inches. 
« Another locality for flagstones is on the Awaganasees Brook, about thirty-four 
miles and a half from the mouth of the Patapedia, They so much resemble those 
of the Metis River that they are supposed to be of the same geological formation. 
The slates, however, were of larger dimensions, some of those seen being two 
feet square, and others four by eight feet, the thicknesses being from one to two 
inches. Another exposure about a mile lower on the Awaganasees would yield as 
large but thinner slabs, which would form excellent tile stones. 
‘* Another locality of the same description of material was met with on the 
Patapedia, about seventeen miles and three quarters from the mouth. Here good 
tile stones might be obtained. 
‘On the Rimouski River below the fall, on the twenty-fourth lot of the sixth 
range of Duquesne, flagstones might be obtained of a character so similar to those 
of the Metis, that they are supposed to have the same stratigraphical place. The 
dimensions observed, as already stated, were two by three feet, and four by six 
feet, with thicknesses varying from one to four inches, / 
“ Mill stones. On Lake Matapedia the white sandstones which underlie the 
Gaspé limestones would answer the purpose of mill stones. When I passed the- 
lake, Mr. Pierre Boucher shewed me a stone which he had prepared from the rock 
to be used in a mill about to be erected by him. The rock is undoubtedly hard 
and solid enough for the purpose, but wants the small cavities required for mill 
stones of the best description. 
“ Building stones. From the grey calcareous sandstones of group B, excellent 
building stones may be obtained, and so many localities in which these sandstones 
occur have been named in the geological description, that farther allusion to them 
ig unnecessary. The more solid beds at the base of the Gaspé limestones, as they” 
