348 THE GEOLOGICAL MAP OF THE WORLD. 
Hochstetter, Julius Haast and James Hector, is to-day completely 
known, and I owe to the kindness of the two last named savants, 
a manuscript geological map of these isles, which has just ap- 
peared at Wellington under the title of “Sketch Map of the Ge- 
ology of New Zealand.” 
No country has made so much progress in geology during the 
last twelve years as Australia. The discovery and search for gold 
have certainly contributed to it, and the different colonies have 
devoted considerable sums towards sustaining geological surveys 
and mining statistics. The colony of Victoria especially has shown 
the example in the construction of a good geological map by 
Messrs. Selwyn, Brough Smyth, Ulrich, Henry Y. L. Brown, ete. 
From Tasmania I have received a manuscript map of all of Van 
Diemen’s Land by Mr. Charles Gould, who for several years has 
directed the Geological Survey. In New South Wales the Rev. 
W. B. Clarke has given in numerous memoirs some excellent gen- 
eralities on this part of the Australian Continent; and Mr. R 
Daintree has just published a ‘Sketch Map of the Geology of 
Queensland” (Quart. Journ. of the Geol. Soc. of London, vol. 
xxviii, p. 271, 1872.) Finally, during these last two years Mr. 
Henry Y. L. Brown has made a geological reconnoissance of West- 
ern Australia. 
Mr. Alfred Grandidier has given in grand outlines the general 
characters of the island of Madagascar, which appears to have 
almost nothing in common with South Africa, while it possesses 
great affinities with the geology of Western Australia, and even of 
New Zealand. Southern Africa has for several years, and espec- 
ially since the discovery of the diamond mines, been’ the object of 
geological researches, which allow us to trace with considerable 
exactitude the principal lines of its geognostical constitution. 
The geological map of the colony of Natal has been published by 
Mr. C. L. Griesbach, and the great formation of the Karoo Sand- 
stone, analogous to and probably identical with the Nubian Sand- 
stone, has been studied with care by Messrs. G. W. Stow, G. Gr ey; 
Atherstone and Evans. Messrs. Jones and Huxley have coördi- 
nated and expressed general views on resear¢hes made on the same 
localities; and I owe to the friendship of Professor T. Rupert 
Jones a manuscript map reviewing all that has been done in ts 
_ southern portion of the African continent. 
In the New World Messrs. Musters and F. de Pourtalés have 
y 
. 
ir L A eee 
Pee) 4 3 eee | 
em Bim Fee SEN RAST BAe, Be, Oi ie Sete aie 5 _ E a L ALSA 
$ 
h 
j 
: 
i 
3 
i 
