NOTES ON ANTARCTIC ROCKS. 471 
and the South Shetlands is proved by the observations made by 
the Astrolabe and Zélée expedition, which record a strike in a 
north-north-east and south-south-west direction for the greyish- 
white limestones and phyllite-schists at the South Orkneys. 
Towards Cape Horn from near South Georgia the fold probably 
trends west-north-westerly, then follows an approximately 
meridional direction parallel with the chain of the Andes. It may 
be noted, however, that whereas the Hrebus chain of Victoria 
Land is on the east side of the fold, the Christensen-Bridgman 
group are apparently on the opposite side. This may be due to 
the fact that at the latter locality the eastern slope of the fold is 
steeper than the western, as seems probable from the presence of 
_ the deep ovean abyss east of Graham’s Land, as shown on Dr. 
Murray’s map. It is probable, therefore, that the volcanic chain 
of Victoria Land will continue towards the South Pole, probably 
bending somewhat to the eastward, and will thence change its 
position to the fold on the other side of the Antarctic continent, 
so as to run through the Christensen-Bridgman line of volcanoes. 
In any case it is almost certain that high land, covered of course 
more or less by snow and glaciers, will be found at the South ~ 
Pole.” 
The additional information as to the geology of Antarctica fur- 
nished by the collections submitted to us by Mr. Borehgrevink 
is detailed below :— 
Part I—Prrronoay or tHE Rocks cotuecteD By Mr. C. E. 
Borcucrevink rrom Cape ADARE, VicrorIA LAND, AND 
FROM Possession IsLAND. 
A.—SprEcIMENS From CAPE ADARE. 
Garnetiferous-Granulitic-Aplite, (No. 4). 
This rock is the only representative of the acid-group among 
the Specimens. In the mass it is a white, holocrystalline, aggre- 
Sate of quartz and felspar granules. Numerous small, well- 
“rystallized red garnets are present, also numerous crystals of 
black tourmaline. In section the granulitic texture is very 
