30 NEW YORK STATE MUSEUM 



base of Mt St Alban along the shore of Cape Rosier cove on the St 

 Lawrence may be called the Si Alban limestones, while the passage beds of 

 Billings (no. 3, 4, 5 and 6) which are displayed in the fine 700 foot vertical 

 escarpment at Cape Bon Ami west of Cape Gaspe, may receive the name 

 of Cape Bon Ami limestones. 



It appears that Dr Ami's suggestion referred to above was not 

 published till 1902 ' and he states briefly that " la formation Grande Greve 

 contient des fossiles qui sont equivalents a ceux de la formation Oriskany 

 de I'ouest." 



We shall do well, therefore, to consider the Grande Greve beds as 

 inclusive of all embraced in Logan's divisions 7 and 8. 



In treating of those subdivisions we shall for the present confine our- 

 selves to their development on the Gaspe Forillon. It is here that they are 

 typically exposed. Subsequently we shall refer to their manifestation at 

 other points so far as they have been observed. 



St Alban beds 



Logan's divisions i and 2 

 The exposures of this division lie in the base of St Alban mountain 

 which towers to a hight of iioo feet in sheer declivities above the shore of 

 Cape Rosier cove. One reaches these beds by traversing the King's road 

 from Grande Greve, following its precipitous descent from the top of 

 the sea wall, where the waters beat at the foot of the concave cliff 600 

 feet below, down to the lower levels and across the country to the shore. 

 All but the shore outcrops are here concealed in the great mass of overly- 

 ing strata. The exposures are nearly along the dip of the strata for the 

 trend of the coast is more northerly here than elsewhere. The strata 

 rest on the upturned "Cambro-Siluric" slates of Cape Rosier which of 

 themselves make an inconspicuous element in the topography of the 

 region. Their stratigraphic characters are sufficiently described in Logan's 

 characterization. Messrs. Barlow and Giroux made collections in 1883 



' Equisse geologique du Canada, p. t^t,. Extracted from the Naturaliste Canadieti 

 of 1901-2. 



