Xll JSULLKTIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 

 LooMis : 



Figure 1— Mtip of Mount Toby, Massachusetts 77 



" 2 — Escarimioiit of fault, 50 feet of the di'op at ii. as shown 



in figure 1 78 



" ti — Brook falling oA'er fault escarpmeut, edge of wliich is not 



yet eroded 79 



Chamberlin : 



Figure 1 — Diagram illustrating general relations of spliere of con- 

 trol of earth to sun 2l4 



" 2 — Diagram illustrating sphere of control of earth on larger 



scale 21G 



" 3 — Diagram visualizing certain dynamic distinctions much 



nearer the earth-body 217 



" 4 — Diagram illustrating dynamic features of the earth-body. 220 

 Mathews and Little : 



Figure 1 — Bachelors in geology and geography compared with total 



Bachelors 231 



" 2 — Masters in geology and geography compared with total 



masters . 



232 



" 3 — Doctors in geology and geography compared with total 



doctors 232 



" 4— Number of articles published on North American geology 244 

 Mansfield : 



Figure 1 — General geological map of the Cranes Flat, Henry, and 



Lanes Creek quadrangles, Idaho 250 



" 2 — Saint John's structure section through Sugarloaf Moun- 

 tain 262 



" 3 — Map with geologic structure section of the Sugarloaf 



Mountain district. Cranes Flat Quadrangle, Idaho 263 



Alcock and Bruce : 



Figure 1 — Map showing certain pre-Cambrian areas in Manitoba. .. 269 

 " 2 — Section showing relation of lower and upper divisions of 



the pre-granite complex, Knee Lake, Manitoba 2S0 



" 3 — Diagrammatic plan of contact of fragmental rock and 



lava flow in section 281 



Thwaites and Twenhofel : 



Figure 1 — Map of parts of Iowa, Illinois, Wisconsin, and Minne- 

 sota, showing distribution of the Windrow formation.. 295 

 Ruedemann : 



Figure 1 — Geisonoceras tenuitextum (Hall) 316 



" 2 — Cyrtoceras parvulum Barrande, with color bands 316 



" 3 — Actinoceras tenuifllum (Hall ) 317 



" 4 — Oncoceras pupwforme nov 318 



" 5 — Oncoceras pupaforme nov 318 



" 6 — Oncoceras jmpcrforme nov 318 



" 7 — Geisonoceras cf. transversum (Miller) 319 



" 8 — Fragment of Orygoceras cornu-oryx (Whitfield) 320 



" 9 — Protocycloceras tvhitfleldi (Ruedemann) 320 



