QUATERNARY FOSSILS. 325 



Kane in the extreme north of Greenland enabled him 

 ^'to assert positively the interesting fact of a secular 

 -elevation [480 feet] of the crust commencing at some as 

 yet undetermined point north of 76°, and continuing to 

 the Great Glacier and the high northern latitudes of 

 Orinnell Land." (Vol. ii. p. 81.) 



We need not here allude to the similar oscillations in 

 northern and central Europe to still greater heights 

 -above the present level of the ocean. 



At various points along the coast from Caribou Island, 

 where they were abundant, to Hopedale, occurred in the 

 drift gravel beds associated with the fossils, numerous 

 pebbles and small bowlders of a light silicious bedded 

 limestone, which contained numerous Silurian fossils. 

 Lieber mentions finding pieces of limestone on the shore 

 of Aulezavik Island. There can be little doubt that 

 these bowlders were transported on ice from the Silurian 

 basins in the arctic regions on the west side of Baffin's 

 Bay. Perhaps their origin may by future observers be 

 traced to the Silurian limestones found at the head of 

 Frobisher's Bay by Hall. Such fragments are not now 

 to be seen on the floe-ice coming down from the north. 



A large proportion of the species mentioned in the 

 following hsts (reprinted from the Memoirs of the Boston 

 Society of Natural History, i. 231-234) occurred in great 

 abundance and in a good state of preservation, so 

 that they could be compared very satisfactorily with 



' Fox,' Dr. Walker, the surgeon of the expedition, found the following sub- 

 •fossil shells at Port Kennedy, at elevations of from one hundred to five hundred 

 ieet: Saxicava rugosa, Tellina froxima, Astarte arctica (borealis), Mya uddeval-- 

 lensis, Mya truncata, Cardium sp., Buccinum undatum, Acmea testudinalis , Bala- 

 Mus uddevaUensis." — Appendix to McClintock's Narrative. (Amer. edit. p. 370.) 



