INDEX TO VOLUME 33 



Page 

 Ablation of the eastern lobe of the 



Wisconsin ice-sheet ; J. 11. Cook... 117 

 Adams, L. 11. ; A source of heat in vol- 

 canic activity 144 



Africa, Mineral genesis in South 229 



After-effects of igneous intrusion ; 



Presidential address by J. F. Kemp 231 

 Age and development of Red Beds and 

 the terrestrial vertebrates in the 

 Appalachian and the Kansas-Texas 

 region ; J. W. Beebe 208, 671 



— of the coal beds of the Kaiping coal 



basin in northeastern China ; A. W. 



Grabau 201 



Talladega phyllite ; W. F. 



I'routy . . . . '. 151 



Alabama, Ordovician of 605 



— ■, Volcanic ash bed in the Ordovician 



of 152 



Alaska, Kennecott glacier of • 527 



Algonkiax sediments. Quantitative 



study of 108 



Allen, E. T. ; Hot springs of Lassen 



National Park 141 



— and A. L. Day; Recent eruption of 



Lassen Peak 141 



Alling, H. L. ; Petrographic studies of 



some New York sediments 107 



Altamqxt moraine 102 



Altcras, California. Tertiary mamma- 

 lian remains from 188 



American Association for the Advance- 

 ment of Science, Greetings from 



Section E of 135 



Ammonites, Methods of studying 209 



Amthibiax from the Coal Measures of 



Kansas 212 



Amygdaloid from Nova Scotia 126 



Axalcite from Nova Scotia, with a 

 discussion of analcite analyses in 



general ; A. L. Parsons 230 



Andean geosyncline 90 



Andes between Cocbabamba and Santa 



Cruz, Reconnaissance of the 553 



— , Front ranges of the 138. 703 



— , Reconnaissance of eastern 124 



Androscoggin River, Former courses 



of the 121 



Antevs, E. ; Recession of the land-ice 



in New England 86 



Anthracite of Tennsvlvania. Organiza- 

 tion of 149 



Antimony mines of Shiu Chow. China : 



G. D. Hubbard 149 



Appalachian Coal Measures Ill 



- — , Red Beds and vertebrates of 671 



— terrestrial vertebrates 208 



Ar.eocyox, a probable old world mi- 

 grant : M. R. Thorpe 214 



A recent hot-spring deposit in Bolivia ; 



W. Lindgren 224 



Argentina, Front ranges of the Andes 



of 138, 703 



Arizona. Silver ores near Wickenburg. 225 



Arnold. Ralph : Hazards of the oil in- 

 dustry 225 



Ashley, G. H. : Proposed new nomen- 

 clature of the Appalachian Coal 

 Measures Ill 



A source of heat in volcanic activity ; 



L. H. Adims 144 



A study of crvstal svmmetry : A. F. 



Rogers . . . *. 229 



1'Hge 

 A suggestion tor the terminology of 



certain ore deposits; W. Lindgren. 224 

 AUDITING Committee, Election of...... 12 



of 1'aleontological Society, Ap- 

 pointment of ' i<).-, 



, Report of the 113 



Ball, S. H. ; Geological and geograph- 

 ical occurrence of precious stones. 226 



— , Secretary ; Proceedings of the First 

 Annual Meeting of the Society of 

 Economic Geologists, held at Am- 

 herst. Massachusetts, December 28- 

 30, 1921 223 



Basalts, Deccan traps and other pla- 

 teau 140 



— of India 7(35 



Basix Range faults, Morphologic 



changes in 90 



Bassler. R. S. ; Mobawkian and Cincin- 



natian rocks of central Tennessee. 207 



— . Secretary ; Proceedings of the Thir- 

 teenth Annual Meeting of the Pale- 

 ontological Society, held at Am- 

 herst, Massachusetts, December 28- 



„ 30, 1921 i9i 



Bast ix, E. S. : Primary native silver 

 ores near Wickenburg. Arizona, and 

 their bearing on the genesis of the 

 silver ores of Cobalt, Ontario 225 



— ; Stressing economics in the teaching 



of economic geology 224 



— and W. Lindgren; 'Geology of the 



Braden mine, Chile 224 



Bateman, A. M. ; Kennecott glacier of 



Alaska 527 



Beebe. J. W. : Age and development of 

 Red Beds and terrestrial verte- 

 brates of the Appalachian and 

 Kansas-Texas region 208. 671 



BiBLfOGRAPHY and catalogue of the 

 fossil vertebrates of North Amer- 

 ica 203 



Btg Badlands of South Dakota, Oreodon 



beds of the 155 



Big Stoxe gap area, Pre-rennsylvanian 



rocks of the * 98 



Black Hills. Cummingtonite schists of. 225 



— shales of Ohio 152 



Blastomeryx. Restoration of 211 



Bolivia. Front ranges of the Andes of. 



138. 703 



— , Recent hot-spring deposit in 224 



— •, Reconnaissance of the Andes be- 

 tween Cochabamba and Santa Cruz 124 



Bossler. R. B. : Results obtained by 

 imoroved methods of extracting 

 petroTeum 224 



Bowie. W. ; Theory of isostasy — a geo- 

 logical problem 113. 273 



Bowles. O. ; Plea for economic miner- 

 alogy 229 



Boydell. IT, C. ; Some etching tests of 



oyrrhotite 226 



Bowex. N. L. ; Genetic features of al- 

 noitic rocks from Isle Cadieux. 

 Quebec 130 



— : Two corrections to mineral data... 230 

 Bo wen, W. C. : Petrographic notes on 



the Franklin. New Jersey, zinc ores 225 



Braden mine, Chile 224 



Branson, E. B. ; Geology of Costa Rica 90 



(853) 



