352 ~W. B. Clarke on the Sedimentary Formations, ce. 
deposits, from which, as in Illawarra and Broken Bay, a con- 
siderable profit is obtained by dredgers and shell-collectors, fo 
the production of lime. 
Mr. Rudder illustrates the case of the Macleay by collections 
of the shells, and by a carefully-drawn map defining the limits 
of the Pleistocene deposits. (See No. 469.) é 
All along the coast, from Torres’ Straits to Bass’s Strait, 
drift pumice may be found wherever there is a lodgment, gen- 
erally in the north corner of the little shore bays. That this 
1as gone on for ages is apparent, as in one part of the coast 
south of Sydney there is an accumulation of water-worn pum- 
ice, some distance from the shore, and beyond the reach of the 
present waves. It is supposed to come in during easterly gales, 
from the volcanic islands to the northeast. : 
aised beaches occur also at various heights on rocky projec- 
tions of the coast, indicating elevation of the land, of which 
there is distinct evidence in the recent period, not only in 
Moreton Bay, near Sydney, and thence to Bass’s Strait; but 
George’s Sound. Mr. Selwyn gives data for assuming the ele- 
vation of the land to have reached occasionally 4,000 feet in 
Victoria, but he has no evidence of Tertiary marine fossils above 
600 feet. Unfortunately, on the eastern coast, having no ma- 
rine Tertiaries, we have to found our deductions, as respects New 
South Wales, on less secure data. Yet we have here evidence 
of another kind, and pot-holed surfaces of considerable extent 
have been found by me at various heights from 300 to nearly 
3,000 feet. 
In a brief abstract like the present, it is impossible to quote 
authorities, nor has time allowed a more satisfactory digest or 
@ wider range of statements. Nor has opportunity permitted 
the preparation of sections (save of the Newcastle Coal Field, 
No. 477) or map to point out relative positions of the forma- 
tions mentioned by me in this paper. The places named can, 
however, be seen on such maps as are probably exhibited by 
English D see. not, reference can be made to ae ae 8 
2 — | ~ ia, in Stieler’s Hand Atlas, ee eo 
- wave not named the occurrence of the ferruginous deposi 
of the Cape York Penins 
ula, (though I possess a map, and 
