32 SCIENCE PROGRESS 



to the conclusion that each of these is a distinct geological 

 province. Australia and New Zealand appear to have grown 

 sympathetically in response to some simultaneous dominating 

 agency ; but in New Guinea the earth-movements appear to 

 be opposed to those of Australia with a tendency to fill the 

 intervening negative area. 



The new Survey Memoir on Ben Nevis and Blen Coe contains 

 some profoundly interesting material for students of Highland 

 geology, and for geologists in general. Original contributions 

 to science are to be found in at least four subjects : the origin 

 of the topography ; the structure and succession of the High- 

 land schists ; the vulcanology and petrography of the igneous 

 rocks of the Old Red Sandstone ; and the contact-metamorphism 

 of schists, sediments, and igneous rocks by the Old Red Sand- 

 stone granites. 



In his paper on geology at the seat of war Dr. Strahan shows 

 the manifold uses of geology in modern military operations, 

 and discusses the water supply from the geological formations 

 along the western front. 



Petrology 



LACROIX, A., Sur quelques roches volcaniques melanocytes des Possessions 

 franchises de POcean Indien et du Pacifique, Comptes Rendus, 191 6, 163, 



I77-83- 



La Constitution des roches volcaniques de PArchipel des Comores, ibid. 



213-19. 



La constitution des roches volcaniques de l'extreme Nord de Madagascar et 



de Nosy Be" ; les ankaratrites de Madagascar en general, ibid. 253-8. 



Les syenites a riebeckite d' Alter Pedroso (Portugal), leurs formes mesocrates 



(lusitanites) et leur transformation en leptynites et en gneiss, ibid. 279-83. 



Rastall, R. H., and Wilcockson, W. H., The Accessory Minerals of the 

 Granitic Rocks of the English Lake District, Q.J.G.S. 1917, 71, Part 4 for 

 191 5, 592-622. 



Mennell, F. P., The Rocks of the Lyd Valley, above Lydford, ibid. 623-38. 



Foye, W. G., Are the " Batholiths " of the Haliburton-Bancroft Area, Ontario, 

 correctly named? Journ. Geol. 1916, 24, 783-91. 



Holmes, A., A Mineralogical Classification of Igneous Rocks, Geol. Mag. (6), 



191 7, 4, 115-30. 

 BENSON, W. N., and others, British Antarctic Expedition, 1907-9 : Reports on 

 the Scientific Investigations, Geology, Vol. II., Contributions to the Paleon- 

 tology and Petrology of South Victoria Land, London, 1916, pp. 270. 



In his series of papers on the volcanic rocks of the French 

 possessions in the Indian and Pacific Oceans, Prof. Lacroix 

 has begun the finer discrimination of the rocks classed under 

 the omnibus term basalt. He distinguishes the melanocratic 



