GEOLOGY 225 



Dr. Armstrong, of the Investigator., referring to the northern 

 part of Banks island, states that outliers of Carboniferous lime- 

 stone are found at Cape Crozier and near Mercy bay, along 

 with the sandstones and shales with coaly streaks. 



It is doubtful if the Carboniferous rocks occur on the north- 

 west part of North Devon, though placed there by De Eance 

 and Dawson. Schei found only Silurian and Devonian on the 

 northern part of that island explored by him, and the Carbon- 

 iferous rocks do not show on the west coast of Ellesmere until 

 Store Bjornekap is reached. If a line were carried from the 

 outcrops of these rocks on Bathurst island northward to Store 

 Bjornekap it would cross the western part of Grinnell (island) 

 peninsula, but there is no reason to suppose that the outcrop 

 would follow such a line. 



The Carboniferous rocks of western Ellesmere appear to be 

 isolated areas resting upon the underlying Devonian, and in 

 turn covered by Mesozoic rocks. Schei describes the area at 

 Store Bjornekap as consisting in its lowest part of beds of 

 brownish-gray, hard, fossiliferous limestone; higher up, of a 

 white pure limestone, flinty limestone and pure flint strata, 

 richly fossiliferous, among the fossils being Lithostrotion sp., 

 Fenestella sp., Streptorhynchus crenistria, Rhynchonella (Pug- 

 nax) sp., Spirifer cfr. ovdlis, cuspidatus, mosquensis, Pr.oduc- 

 tus cfr. semireticulatuSj costatus, punctatus, cora, &c. 



The extreme northeast part of Axel Heiberg island is marked 

 as Carboniferous by Schei, but there are no notes concerning 

 this locality in his geolocigal summary. 



The Carboniferous sandstones have not been found in the 

 northeast part of Ellesmere island, but limestones of that age 

 were found in several localities to the west of Dana bay, and 

 there is every likelihood that rocks of this age extend across the 

 northern parfrof the island to join those of the western shore 

 and the northern part of Axel Heiberg island. 



