32 SCIENCE PROGRESS 



underground range of the Jurassic and Lower Cretaceous rocks 

 in East Kent (Summ. Prog. Geol. Surv. for 19 16, 191 7, 40-52). 

 These rocks are shown to form a great wedge with a northward 

 apex intervening between the Palaeozoic floor and the basal 

 bed of the Upper Cretaceous. Another interesting fact demon- 

 strated by the deep bores is that the superficial anticline of the 

 Weald rests upon a syncline of the older rocks. H. A. Baker 

 deals with the same facts (Geol. Mag. 191 7, 4, 542-50), but 

 discusses especially the unconformity between the Cretaceous 

 and the older rocks. 



Trueman, A. E., The Lias of South Lincolnshire, Geol Mag. 

 1918, 5, 64-73 ; ioi-ii). 



White, H. J. O., The Geology of the Country around Bourne- 

 mouth, second ed., Mem. Geol. Surv., England and Wales, 

 Expl. of Sh. 329, 1917, pp. 79. 



Preller, C. du Riche, Italian Mountain Geology, Dulau 

 & Co., London, 1917, pp. 192. 



Stefanini, G., Outline of the Geological History of Venetia 

 during the Neogene, Amer. Journ. Set. 191 7, 44, 299-312. 



The tuffs and lavas of the Pahang volcanic series (Federated 

 Malay States), consisting mainly of rhyolites and andesites, are 

 described by E. S. Willbourn (Geol. Mag. 191 7, 4, 447-62 ; 

 503-14). While it is not possible to define their age exactly, 

 some of the rocks are interstratified with the Raub Shales, and 

 are therefore of Permian age. It is probable that the volcanic 

 activity continued well into the Triassic, as some tuffs are 

 found interbedded with Gondwana shallow-water deposits. 



Smith, Warren D., Geologic and Physiographic Influences 

 in the Philippines, Bull. Geol. Soc. Amer. 191 7, 28, 515-42. 



Benson, W. N., The Geology and Petrology of the Great 

 Serpentine Belt of New South Wales. Part 6. A General 

 Account of the Geology and Physiography of the Western 

 Slopes of New England. Proc. Linn. Soc. New South Wales, 

 191 7, 42, 223-83. 



Taylor, Griffith, Antarctic Geology, Mining Mag. i9 l 7» 

 17, 262-9. 



In an important paper on the problem of the Cretaceous- 

 Tertiary boundary in South America, and the stratigraphic 

 position of the San Jorge formation in Patagonia (Amer. 

 Journ. Sci. 191 8, 45, 1-53), A. Windhausen shows that there is 

 a stratigraphic as well as a faunistic break between the Cre- 



