90 THE ZOOLOGIST. 
this series of ancient rocks has been given the name of “Cape- 
Rawson Beds,”* although they appear to represent in time the 
Huronian epoch of North America. Though it was somewhat 
disappointing to find the vicinity of Floeberg Beach composed of 
metamorphic rocks showing no traces of organic remains, as it 
deprived us of the possibility of forming an extensive collection 
of fossils, yet there was much of interest to be observed in the 
neighbourhood. Recent beds composed of thick deposits of mud, 
silt, and water-worn gravels were discovered in various localities, 
and traced to an elevation of nearly a thousand feet. The organic 
remains found in these beds proved to be identical in every 
respect with the fauna now existing in Grinnell Land. We 
discovered in them the bones of the Lemming, Ringed Seal, 
Reindeer, and Musk-ox, and the shells of the marine Mollusca 
which are most abundant in the adjacent sea.+ This is conclusive 
evidence that during the lapse of time, indicating an upheaval of 
Grinnell Land to a height of a thousand feet, there has been 
little or no change in the existing climate. Not the least inte- 
resting discovery was finding drift-wood lying on the surface of 
the ground, at different elevations up to three hundred or four 
hundred feet, still retaining its buoyancy, and differing little 
in appearance from that now being stranded on the shores of 
the Polar Sea. Whilst granting full effect to the preservative 
qualities of extreme cold, yet it seemed almost incredible that a 
substance like wood could remain intact whilst lying on the 
surface during a period of time requisite to elevate a continent a 
height of several hundred feet.. It was satisfactory, therefore, 
to observe that, when found inland, this drift-wood was always 
discovered in situations where it had undoubtedly been un- 
covered from the glacio-marine beds of the district, by sub-aérial 
* «Quarterly Journal Geological Society,’ August, 1878. 
+ The followlng species of marine Mollusca have been identified from the Post- 
tertiary beds of Grinnell Land :— 
Pecten greenlandicus Nera subtorta Buccinum tenue 
Leda pernula Saxicava rugosa hydrophanum 
,, frigida Mya truncata Trichotropis borealis 
» arctica Cardium islandicum Trophon clathratus 
Arca glacialis Tellina calcaria Pleurotoma tenuicostata 
Axinus flexuosus Thracia obliqua ys exarata 
Astarte borealis Siphodentalium vitreum ii Trevelyana 
»  fabula Trochus umbilicalis Cylichna alba 
