PAL.EONTOLOGICAL EVIDENCE 311 



In Fig, 8, above, Professor Gregory produces a sketch map of Antarctica, which 

 is in opposition to that published by Dr. Douglas Mawson,* and that given by 

 Dr. W. S. Bruce. 



In the same paper Gregory contends that the Atlantic and Pacific cannot be 

 regarded as distinct petrographical provinces excepting in a broad, loose way, 

 the exceptions being almost as numerous as the rule. 



3. Palceontological Evidence afforded by the Fossil Fauna and Flora. 



As regards the fossils obtained so far from the Antarctic regions, by far 

 the most important remains which have been discovered, or at all events the 

 most complete, are the plants. A fine collection of these were secured at Hope 

 Bay, on Terre Louis Philippe, by Dr. J. Gunnar Andersson and other members 

 of Dr. Otto Nordenskjiild's Expedition. A valuable series of fossils has also 

 been obtained, first by Captain Larsen of the Jason, and later by Dr. Nordenskjold 

 and his staff at Snow Hill Island. At the latter locality there is an abundant 

 Cretaceous marine fauna followed on higher horizons by plant beds of perhaps 

 Miocene age. These in turn are succeeded by late Tertiary marine beds, which 

 can be correlated with similar strata in Tierra del Fuego and Patagonia. Plate 

 XCII. Fig. 1 is a diagrammatic section across the American end of the Antarctic 

 continent, showing the approximate relation of these fossiliferous beds to one 

 another, and their approximate sequence in connection with the eruptive series. 



The information is taken chiefly from the memoirs of Dr. J. Gunnar Andersson, 

 as well as from those of J. Charcot, E. Gourdon, and Dr. W. S. Bruce. 



As the palfeontological record is so far very much more complete on the 

 American side of the Antarctic than in the Ross Sea region, we may briefly review 

 the evidence in the former quarter, and then pass on to consider the probable 

 palfeontological relations of the rocks of the Ross region . 



Suess has shown that a strong trend line nearly concentric with the lines 

 which pass through Southern Patagonia, Tierra del Fuego, and Staten Island I'uns 

 through the Falkland Islands. This has a general W.N.W. to E.S.E. trend. 

 At the Falkland Islands there is an extensive development of marine Devonian 

 sandstone resting on older granitic rocks ; this in turn is succeeded by a Permo- 

 Carboniferous formation which is developed, as described by J. Gunnar Andersson, 

 in both islands, and particularly in a small island known as Speedwell Island. Halle 

 has described Glossopteris from the latter locality. Drift fragments of kerosene 

 shale, as we are informed by the Governor of the Falkland Islands, have been 

 obtained, transported from inland, on the banks of rivers. These have been proved 



* Geogr. Journ., vol. xxxvii., June 1911, p. 612, "The Australasian Antarctic Expedition," by 

 D. Mawson, D.Sc. In his map D. Mawson shows the mountains of the Antarctica of South Victoria 

 Land continuous with the ranges of " Westantarctis," and not divided by Professor C4regory's " Hypo- 

 thetical Antarctic Rift Valley," extending from Ross Sea to Weddell Sea. 



