PHYSICAL GEOLOGY. 185 



Summarizes the chief data whereby we may ultimately be enabled to 

 arrive at an approximate calculation as to the antiquity of the earth. 



Thomson, Sir William. Influences of Geological Changes on the 

 Earth's Kotation. (President's Address.) Trans. Geo]. Soc. Glasgow, 

 vol. iv. part 3, pp. 311-313 (abstract). 



ToPLEY, "W". Areas of Apparent Upheaval and Thickening of Subja- 

 cent Beds. See p. 37. 



VicAiRE, E. Sur la constitution physique du Soleil dans ses rapports 



avec la geologic. [Physical structure of the sun with reference to 



geology.] Bull. Soc. Ge'ol. Prance, 3 ser. t. ii. pp. 211-219. 



A paper on solar physics. The author regards the mineral oils of 



America &c. as matter of primordial origin, " witnesses of the stellar 



age of the earth, which have escaped the general conflagration of that 



epoch." He denies the possibility of great glacial* epochs in ancient 



geological times, although he admits that glaciers may have existed 



then as now. G. A. L, 



WiEBEL, K. W. M. Die Insel Kephalonia und die Meermiihlen von 

 Argostoli. YersucheinerLosung dieses geophysikalischenllathsels. 

 4to. Hamburg. Pp. ix, 160 ; map, sections, and woodcuts, 



