INDEX TO VOLUME 30 



639 



Page 

 DowLiNG, D. B., cited on Hudson Bay 



limestone 355 



Earth's rotation, Geotectonic adapta- 

 tion through retardation of 87 



Eastman, C. R., Memorial of 27 



Economic geology of Brazil 223 



— value of paleontology; R. Arnold... 153 



Editor's report 9 



Election of Fellows 12 



officers 11 



Paleontological Society 147 



Engineering geology in and after the 



war ; C. P. Berkey 81 



England, Mineral Resources Bureau of 



London 100 



Eocene divisions of California; B. L. 



Clark 154 



— floras 529 



EscoMBE, F., cited on plant develop- 

 ment 549 



Espirito Santo, Geology of 249 



Europe, Phosphate deposits of 104 



Eurypterid horizon, A new 152 



Evolution of geologic climates ; F. H. 



Knowlton 499 



Fairchild, H. L. ; Post-glacial uplift 



of New England coastal region ... 89 



southern New England 597 



Fassig, O. L. ; Signal Corps School of 



Meteorology 106 



Fellows, Election of 12 



Fishes from Brazil, Fossil 246 



Flett, J. S., cited on flint 392 



Flints of northern France 389 



Fossil fishes from Brazil 246 



— sauropods 383 



Fossils along Nelson River, Paleozoic. 346 



— from Hudson Bay region, Silurian . . 



353-370 



Maryland. Marine 57fi 



Permo-Triassic of Arizona... 471-491 



Shammatawa River 349 



— — Sherburne sandstone 427-464 



— of the Devonian 427 



Fowle, F. E., cited on volcanoes and 



climates 562 



France, American mapping in 110 



— , Chalk, flints, and ground-water of 



northern 389 



streams of northern 91 



Fuller, M. L., cited on New England 



submergence 599 



Further evidence of the age of the 



crystalline and semi - crystalline 



rocks in Alabama; W. F. Prouty.. 113 



Geographic descriptions of army can- 

 tonments and of United States 

 boundary regions ; W. R. Campbell 106 



Geologic and present climates ; M. 



Manson 103 



— climates. Evolution of 499 



— instruction. Cooperation in advanced 94 



— mapping by plane-table 405 



Geology and stratigraphy of the area 



of Paleozoic rocks in the vicinity 

 of Hudson and James Bays ; T. E. 

 Savage and F. M. Van Tuyl 339 



— as a basis of citizenship ; J. E. Pogue 77 

 synthetic science; W. D. Smith 77 



— in the Students' Army Training 



Corps ; H. E. Gregory 81 



world war and after; Presiden- 

 tial address by Whitman Cross... 165 



Page 



Geosynclines, Migration of 87 



Geotectonic adaptation through re- 

 tardation of the earth's rotation ; 



C. R. Keyes 87 



Giles, A. W., Reference to war work 



of 180 



GiRTY, G. H., cited on fossils from 



New Mexico 490 



Kaibab limestone 492 



Glacial lake plains in New England.. 631 

 Glaciation, Evidences of 552 



— in Alaska 115 



Goodchild, , cited on geologic cli- 

 mates 553 



Gothan, , cited on Jurassic woods. 520 



Goyaz, Geology of 251 



Grabau, a. W., cited on sedimentary 



overlap 467 



— ; Conditions of deposition of some 



Tertiary petroliferous sediments... 103 



— ; Inclusion of the Pleistocene period 



in the psychozoic era 149 



— ; Migration of geosynclines 87 



— ; Prevailing stratigraphic relation- 

 ships of the bedded phosphate de- 

 posits of Europe, North Africa, 

 and North America 104 



— ; Relation of the Holochoanites and 

 the Orthochoanites to the Proto- 

 choanites and the significance of 

 the Bactritidse 148 



— ; Significance of the Sherburne sand- 

 stone in Upper Devonic stratigra- 

 phy 423 



Graphite deposits of Alabama 112 



Gregory, H. E. ; Cooperation in ad- 

 vanced geologic instruction 94 



— ; Geology in the Students' Army 



Training Corps 81 



— , Reference to war work of 177 



Gregory, J. W., cited on climate varia- 

 tions 557 



Gregory, W. K., cited on disconformity 



between Kaibab and Moenkopi .... 494 



— studies of sauropoda by 383 



— - elected on Supervisory Board of 



American Year Book 146 



Ground- WATER of northern France.... 389 



Hamilton formation of New York.... 464 

 Hannibal, Harold, cited on Pliocene 



flora 536 



Harmer, F. W., cited on geologic cli- 

 mates 556 



Helderbergs, Sherburne sandstone of 



the 468 



Heer, Oswald, cited on Miocene floras. 



535-536 

 Hennen. R. C. cited on Coal Measure 



sections 583 



Hewett, D. F. ; Manganese as a war 



mineral 97 



High-grade clays of the United States ; 



„ H. Ries 95 



HiLGARD, E. W., cited on earth heat... 543 

 Hills, Loftus, cited on militarv geol- 



„ ogy ■ 170 



Holochoanites and Orthochoanites, 



Relation of the Protochoanites to. 148 

 HovEY, E. O.. Secretary; Proceedings of 

 the Thirty-first Annual Meeting of 

 the Geological Societv of America, 

 held at Baltimore. Marvland. De- 

 cember 27 and 28. 1918." l 



Hudson Bay, Paleozoic rocks in vicinitv 



of ■; 339 



region. Correlation of Silurian of. 367 



, Devonian rocks of 370 



