INDEX TO VOLUME XXXI 



PAGE 



Abrege de Geographic physique. By Emmanuel de Martonne. Review 



by A. H. B 263 



Algae, Believed to Be Archean. By John W. Gruner .... 146 

 AlUng, Harold. L. The Mineralography of the Feldspars, Part II 282, 353 

 Allison, Vernon C. The Growth of Stalagmites and Stalactites . . 106 

 Ahnandite and Its Significance in the Contact Zones of the Grenville 



Limestone. By George W. Bain 650 



Alps, The Cycle of Erosion and the Summit Level of the. By W.M.Davis i 



Amerika: Eine Uebersicht des Doppelkontinents. II. Geographische 



Kulturkunde. Von Karl Sapper. Book Notice .... 528 

 Ammergauer Studien: I. Die Pfianzendecke in ihren Beziehungen zu 



den Formen des alpinen Hochgebirges. Von L. Loegel. II. Kare 



und karahnliche Formen in den Ammergauer Bergen. Von 



Studienrat W. Stadelmann. Book Notice 616 



Andersson, J. G. Essays on the Cenozoic of Northern China. Book 



Notice 616 



Angiosperm, A Paleozoic. By A. C. Noe 344 



Anorthoclase Basalt from Mapleton, Blackall Range, South-Eastern 



Queensland. Book Notice 616 



Anorthosites and Other Monomineral Igneous Rocks, The Problem of 



the. By F. Loewinson-Lessing 89 



Antarctic Expedition, British (Terra Nova), 1910-1913. Glaciology. 



By C. S. Wright and R. E. Priestley. Review by T. C. C. . . 513 

 Anthracite Coal, A Preliminary Report on the Microscopy of. By 



Homer G. Turner and H. R. Randall 306 



Arber, E. A. Newell. Devonian Floras. Review by A. C. N. . . 88 

 Arbuckle and Wichita Mountains of Oklahoma, Was There Pennsyl- 



vanian-Permian Glaciation in the ? By Samuel Weidman . . 466 

 Arctic Climates, Present Significant Ameliorations of. By T. C. 



Chamberhn . 376 



Arctic, The Friendly. By Vilhjalmur Stefansson. Review by WiUiajjn 



Herbert Hobbs iS4 



Augite from Stromboh. By H. S. Washington and S. Kozu. Review 



by Albert Johannsen 81 



Bain, George W. Almandite and Its Significance in the Contact Zones of 



the Grenville Limestone 650 



Baker, Charles Laurence. The Lava Field of the Parana Basin, South 



America 66 



690 



