Reviews—Page’s Earth's Crust. 83 
to their own wishes) to labour onward, making known the purely 
scientific facts which come before them, recollecting that the personal 
honesty of each observer is the stake for which he plays in the great 
game of science, recollecting also that, as Benedict Spinoza has 
demonstrated, ‘neither philosophy nor theology is subordinate, but 
that each holds sway in its own sphere without prejudice to the 
other’-—we would say that it was their duty to go on stedfastly, 
unwaveringly, ‘ ohne Hast, ohne Rast, conscious that they interpret 
to the best of their finite ability their conception of the truths of 
science, and equally conscious that whatever may be the immediate 
result of their labours, or whatever obloquy or misrepresentation 
they accept as their necessary inheritance, they must eventually fulfil 
the aspiration which tends ad majorem Dei gloriam. 
| ee QUARTERLY JOURNAL OF SCIENCE for July advances our 
knowledge of geology by original articles, retrospective sum- 
maries, and notices of published works. Mr. Jenkins’s memoir of 
the characters of fluviatile, lacustrine, and estuarine formations, 
specially elucidated by some brackish water fossils from Crete, 
treats of the geology of the Eastern Mediterranean Region, 
especially as to the relative age of the marine and freshwater strata 
of Lycia and Crete, pointing out that the Lycian freshwater beds 
are really older than the marine strata, instead of being newer, as 
they were formerly regarded by Professor E. Forbes and Captain 
Spratt. The paleontological distinctive characters of deposits formed 
in lakes, rivers, and estuaries are discussed, and the malformation of 
shells is taken as a guide in the determination of the nature of the 
Cretan deposit, from which the author describes several fossil shells, 
including six new forms. Some of these are curiously malformed, 
especially a spiniferous Nertéina and a reversed Melania. The plate 
is well executed; but a mistake occurs in its numeration. Pro- 
fessor Ansted gives an interesting description of the copper-vein in 
Tertiary voleanic rock, worked at the celebrated Monte Catini in 
Tuscany, showing points of similarity and of difference as regards 
other copper-lodes, and ascribing its origin to currents of water and 
vapours, leaving deposits in fissures formed by modern volcanic agency. 
The quarterly résumés of the progress of geology and other 
sciences are satisfactorily continued; that of geology and paleon- 
tology, as well as that of mining, mineralogy, and metallurgy, seem 
to be as comprehensive as space will allow; and several other 
articles will be found to interest geological readers. 
Tue Earrn’s Crust: A Hay Outline of Geology. By Davin 
Page, F.R.S.E., F.G.S. Edinburgh, 1864. 8vo. pp. 128. 
HE deservedly popular elementary works of Mr. Page are sure 
to give this useful and compact little volume a fair introduction 
to the public. Mr. Page has conceived an ambitiousscheme. From 
the stores of his own mind he proposes single-handed to enlighten 
the enquiring public on Natural Science, Geography, History, and 
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