84 
president’s ADDRESS — SECTION C. 
Near Pokaran there is a similar smoothed and striated pavement,, 
■which is stated to exhibit in addition typical roches moutonnZes. 
(Ii. P. Oldham, op. cit p. 160). The marine fauna associated with 
the Talchir beds, and partly underlying, partly overlying the boulder 
beds, proves them to be homotaxial with those of Eastern Australia 
and Tasmania. Mr. E. D. Oldham states (op. cit ., p. 120) that the 
parent rocks of some of the erratics in the Talchirs are probably 750 
miles to the south. The largest blocks are 15 feet in diameter, and 
weigh thirty tons (op. cit.. p. 157). 
As an argument in favour of the upper portion, at all events, of 
the Bacchus Marsh beds being, perhaps, of Triassic rather than 
Permo-Carboniferous age, the fact maybe repeated here that Professor 
McCoy has identified fragments of plants from near the top of the 
glaciai beds as belonging to Schizoneura and Zeugophi/llites. Neither 
of these have as yet been traced as low down as the Permo-Carboni- 
ferous horizon in New South Wales; but the former occurs in the 
above colony at the base of the Triassic Hawkesbury Series at Bulli. # 
It is also singular that, if the marine Permo-Carboniferous beds 
of Tasmania, New South Wales, and Queensland are homotaxial with 
the Bacchus Marsh beds of Victoria, in which latter glaciated boulders 
abound, no single instance of an undoubtedly glaciated erratic should 
have been met with as yet in the former. The contemporaneously 
contorted bedding in the Triassic Hawkesbury Series of New South 
Wales, being remarkably like that observable in the sandstones of 
Bacchus Marsh, is also an argument for a correlation of the Bacchus 
Marsh Glacial beds with the Trias rather than with the Permo-Carboni- 
ferous. 
(1.) Antarctic Icebergs. 
As the theory that the glacial phenomena in Australia and 
Tasmania, in late Palaeozoic time, are due to floating ice, appears to 
have found most favour with Australian geologists, reference may be 
made here to Antarctic icebergs, their work, and direction of. drift. 
A glance at Plate I., attached to this address, shows that the 
northern limit of iceberg drift in the Southern Hemisphere is about 
lat. 38° S., the northernmost point to which icebergs are drifted being 
a short distance south of the Cape of Good Hope. 
Huge strips cf ice, in some eases over fifty miles long, but usually 
cracked across, so as to form a belt of individual bergs, and half a mile 
or more in width, and 1,700 to 1,800 feet thick, are constantly being 
launched from the front of the great ice barrier of the Antarctic 
ice-cap. 
These bergs are very numerous, and of large size in the 
neighbourhood of Cape Horn, as will appear from the following 
account (kindly placed at my disposal by Mr. II. C. Bussell, Govern- 
ment Astronomer of New South Wales) by Mr. W. 1C Woodget, 
captain of the “Cutty Sark” : — 
“ 1 Cutty Sark,’ Sydney towards Antwerp. Left Sydney 7th J anuary, 
1893. * * * # After rounding the Horn on February 8th, lat. 50° 
08' S., long. 46° 41' W., we ran in amongst a great number of icebergs of 
all sizes and shapes ; one 1 estimated to be 1,000 feet high. It came in 
* Records Geol. Survey, N.S. Wales, voL iii., pt. iii., 1893, pp. 74-77, with 
plate xii., “On the occurrence of a plant allied to Schizoneura in the Hawkesbury 
Sandstone,” by R. Etheridge, junr. 
