EEVIEAVS. 
115 
he strives to demonstrate that the volcanologieal theories of modern geolo- 
gists were anticipated by the early Greek authors. This "work is entirely 
written in the Greek language, with which Dr. Schrarcz seems more fami- 
liar, we fear, than many of our most fervent labourers in Geology. " The 
theory of Progressive Development was warmly adopted and sustained by 
nearly all the ancient naturalists." Tliis is consolatory to those who be- 
lieve with Professor De Morgan that " for a science to become respectable, 
it is necessary that it should be founded by somebody whom nobody ever 
heard of, and whose works nobody has ever read." It is impossible, how- 
ever, that the classical writers could have been possessed of the funda- 
mental truths of geology by any other method than an a priori guess. 
We are positively afraid that if Dr. Schvarcz demonstrates that our pro- 
gressive development theories are due to the comprehensive generalizations 
of Empedocles, some of the less philosophical hypotheses of the nineteenth 
century may also claim classical descent, and we cannot forget that Mr. 
Gosse's 'Omphalos' was anticipated in the time of the author of ' Hudi- 
bras.' However this may be, we cannot fail to render justice to the clas- 
sical and geological acquirements of Dr. Schvarcz. He writes upon a 
subject " nemine ardea trito solo,'' and with the exception of the late Pro- 
fessor Lassault, and Englishmen are now proud to add Sir George Corne- 
wall Lewis, no writer has hitherto ventured to discuss questions fraught 
with such deep interest to the geologist, paleontologist, antiquarian, and 
classicist. We cannot forbear remarking that the beauty of the paper and 
typography of these voluminous Hungarian works, miglit do credit to 
nations more familiar with scientific requirements. 
On the Tenhy Bone Caves. By a Pembrokeshire Eector. 
London : Kent & Co. 
A small unpretentious pamphlet, containing a great many valuable facts 
and suggestions, as the following extracts will show : — 
"Among all the wonders that the prevailing study of the earth's con- 
struction has brought to light, there is not one more striking than the 
presence here in England of great quantities of the bones of wild animals, 
known to inhabit tropical regions, which are found collected together in 
certain natural caves. 
" At Tenby the fact appears in its most striking aspect ; for such caves 
occur, and such bones have been obtained from them in Caldy Island. 
Now to suppose that herds of elephants, and hippopotami, and families of 
lions, tigers, and hysenas, could have lived and been sustained on a small 
island which is all but- a mass of solid rock, is as impossible to imagine as 
that all the human inhabitants of the earth should find room to dwell there 
together. 
" Be the answer what it may, here, beyond all doubt, are the bones of 
these creatures, taken from certain caves in Caldy Island, and in the main- 
land ; some from ' the Oyle,' on a spur of the liidgeway ; and quantities 
from caves in Gower, and elsewhere. No less than 1100 horns of deer, 
mostly shed horns, have been lately exhumed from one cave in Gower 
only. 
" The first of these caves . . . was discovered about twenty years ago by 
the quarrymen in blasting the clifi* overhanging the sea on the north face 
of the island. It had no external opening at that time apparent. The 
walls were vertical, or nearly so ; the strata being . . . perpendicular to the 
plane of the horizon. This cave was formed by a portion of the stratum, 
of considerable thickness, having disappeared at the place. Both tiie walls 
