| 
Ee Ne a Pe eee ES Qe SP eT em 
Be as Ee i iP gl ds i a rie eh ak 
ee 
nA ig a 
a aya Dc Ae lie 
Fe en ne Eee ME Oe A Ms ee 
a 
Progress of Geology. 19 
Great Britain, I may well reflect with pleasure on the fact that 
nearly all the leaders of the latter have been connected with, or 
ave gone out from, our home Geological Survey and the Gov- 
ernment School of Mines. 
Such were the relations to us of Sir William Logan in Canada ; 
of Professor Oldham in India, with several of his assistants; 0 
Selwyn in Victoria; of my young friend Gould in Tasmania, as 
well as of Wall in Trinidad ; whilst Barrett, in Jamaica, is a 
worthy pupil of Professor Sedgwick. Passing over the many in- 
teresting results which have arisen out of the examination of these 
distant lands, we cannot but be struck with the fact, that whilst 
Hindostan (with the exception of the Higher Himalayan moun- 
tains) differs so materially in its structure and fossil contents 
from Europe, Australia (particularly Victoria) presents, in its 
Palzeozoic rocks at least, a close analogy to Britain. Thanks to 
the ability and zeal of Mr. Selwyn, a large portion of this great 
auriferous colony has been already surveyed and mapped out 
in the clearest manner. In doing this he has demonstrated that 
the productive quartzose veinstones, which are the chief matrix 
of gold, are merely subordinate to the Lower Silurian slaty rocks, 
charged with Trilobites and Graptolites, and penetrated by gran- 
ite, syenite, and voleanic rocks, occupying vast regions.* . 
Selwyn, aided in the paleontology of his large subject by Prof. 
M’Coy, has also shown how these original auriferous rocks have 
been worn down at successive periods, one of which abrasions 
is of Pliocene age, another of Post-Pliocene, and a third the re- 
sult of existing causes. All these distinctions, as well as the 
demarkation of the Carboniferous, Oolitic, and other rocks, are 
clearly set forth. . Looking with admiration at the execution of 
s 
enlightened Governor, Sir Henry Barkley, it would at the same 
f 
hope that the young House of Parliament, at Melbourne, may 
not be led to enact such a measure. 
While this sheet is we are in receipt of a letter 
* passing through the 
from Walter Mantell, . of New Zealand, dated Auckland, Aug, 30, in which 
confirms the discovery of new gold fields in New Zealand. “This discovery,” he 
despite the quantities of gold now turning up. ne non-utilization of this by so 
observing and ingenious a race is a strange fact.”—Eps. 
2h Re tn 
