10 Transactions. 
Bartrum (1920) called attention to the widespread occurrence of pebbles 
of gneissic and plutonic rocks in the Mesozoic and later rocks of the North 
Island of New Zealand, and supported Park’s (1893) inference that an 
ancient complex of plutonic and metamorphic rocks formed a land-mass 
near this region during Mesozoic times. The comparison of the work 
‚ supported the suggestion that the remarkable community of characters of 
the successive Mesozoic marine faunas of New Zealand and New Caledonia 
was such as to indicate that these regions were then part of a continuous 
coast-line. Farther north the former continuity of the islands of the 
Louisades Archipelago with the central chain of Papua as indicated by 
Clarke (1878) is confirmed by Stanley's (1921) researches. 
Tug Tectonic RELATIONSHIPS OF AUSTRALASIA AND ANTARCTICA. 
We may here pass on to consider the geological hypotheses of a former 
connection between Australasia and Antarctica, but omit, as in the above, 
the discussion of zoogeographic and phytogeographic evidence. The pro- 
blem has been treated briefly by Mawson (1911) and Gregory (1912), and 
in more detail by David (19148). All the region of South Victoria Land 
extending as far as Adelie Land appears to consist of an ancient gneissic or 
metamorphic complex, with some early Palaeozoic beds overlain by hori- 
zontally bedded Upper Palaeozoic and possibly Mesozoic sandstones invaded 
y immense sills of dolerite. The structure is thus somewhat analogous 
with the structure of Tasmania on the one hand, and of Brazil on the 
other. The Andean zone of folded mountains, with its eastern continental 
being perhaps part of the same system as the Te Anau line of fracture. 
of 
rocks with those of the American And 
King Edward VII Land as а 
1 i PE 
ENEMY 
