INDEX TO VOLUME IV Xl 



PAGE 



Syenite -- 860 



Theralites 688 



Tourmaline Granite ..-.-..--. 865 



Vulsinite 552, 565, 849 



Analysis of Folds - - - - - - - - - - -312 



Andesite of Chiapas ........... g^6 



Andesite of the Kolsena Region ......... 55^ 



Andesitic Tuffs of the Sierra Nevada ........ 884 



Animals in Rock Decay .......... 855 



Anorthosites of the Rainy Lake Region. A. P. Coleman .... goy 



Anthracite — Crested Butte Folio U. S. Geologic Atlas . . - - . 253 



Appalachian Drainage .......... 666 



Areal Geology of Missouri. (Notice) ........ 982 



Arctic Exploration. Editorial. T. C. C. - - - - - - - 728 



Atlantic Slope, Streams of---------- 672 



Atmosphere as a Weathering Agency ....... 707 



Augite-andesites, Origin of some ---.-..-. 273 



Auriferous Conglomerates of South Africa ....... 15 



Auriferous Gravels of the Sierra Nevada - - - - - - - 881 



Autoclastic Rocks .....-...- 5^3^ 624 



Bacteria in Rock Weathering ......... 857 



Bain, H. F. Reviews : General Relations of the Granitic Rocks in the Middle 



Atlantic Piedmont Plateau. G. H. Williams .... 638 



Geological Survey of Canada. Vol. VII ...... q^q 



Bajuvaric Series of the Trias ......... 3^7 



Baldwin, E. B. The Search for the North Pole. Review by T. C. C. - - 649 



Baraboo Loess ............ 535 



Basal Conglomerates ..--...... 625 



Bascom, F. Pre-Tertiary Nephaline-Bearing Rock - - - - - 160 



Bather, F. A. Merocrinus Salopese, n. sp., and Another Crinoid from the 



Middle Ordovician of West Shropshire. (Abstract) - - - • 758 



Becker, George F. Schistosity and Slaty Cleavage ..... 428 



Bear Butte -....---..-.- 37 



Bedding and Cleavage .......... ^g^ 



Bergschrund ............ 920 



Big Sandy River Basin ......... . 670 



Biotite, Magmatic Alteration of - - 257 



Black Hills, Igneous Intrusions near ....... 23, 183 



Bolsena Region ..-----.... 541 



Bonney, T. G. Ice-Work, Present and Past. Review by T. C. C. - - 636 

 Boule, Marcellin. Les Glaciers Pliocenes et Quarternaires de I'Auvergne. 



Review by H. C. C. - - - - - - - - - 125 



Bowlder Couplets ........... 696 



Branner, J. C. Editorial : Decomposition of Rocks ..... 630 



Sizes of Geological Publications ....... 214 



Reviews: Proceedings of the Indiana Academy Science, 1895; Geolog- 

 ical Subjects ........... 981 



