Geology and Natural History. 387 
boring from beds that are probably Tertiary. No other fossils 
have been found at the place to fix the age; a figure of the species 
accompanies the paper. J-D. D. 
. Mountain Making: The inequalities of the Earth's Sur- 
Jace viewed in connection with Secular Cooling.—Mr. O. Fisazr 
Phil. Trans., vol. xii, part ii, with the following remarks: 
Can we then attribute the intense corrugations which meet our 
1 > 
deavored to explain, how the deposition of thick beds upon the 
sea-bottom could affect it by their weight, and I have elsewhere, 
I think proved, that they could not do so by causing a new dis- 
tribution of heat within the crust.* There is likewise much 
reason to believe that consolidation and metamorphism are accom- 
Melting temperature. But Mr. Mallet has shown, in th 
already more than once referred to,f that the difference between 
high temperature for a great length of time after its emission, 
d 
* Geographical Magazine, vol. x, p.248. _¢ Phil. Trans. 1873, p. 160, § 50. 
$ Volcanoes, 2nd edition, p. 84, § 8. 
