Plate 



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8 



" 



9 



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10 



IC 



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A^iil BULLETIN OF THE GEOLOGICaI SOCIETY OF AMERICA 



Page 



Branner : Geological map of Brazil 189 



'' Characteristic weathering of limestone 235 



" Striated boulder of quartzite from the Permian beds 



near Mococa, State of Sao Paulo 316 



" Permian tillite beds containing glaciated boulders... 317 



Savage and van Tuyl : Early Silurian limestones in the Hudson 



Bay region 360 



" 12 " " " Dome of coral-reef rock, and fine-grained 



limestone inclined on the flanks of 



such domes 363 



" 13 " " " Silurian and devonian limestones along 



Severn and Abitibi rivers 373 



" 14 — SwARTZ, Price, and Bassler : Columnar sections of the Cone- 



maugh formation 594 



" 15 " " " Columnar sections of the Potts- 



ville and Allegheny formations 596 



Figures 



Branner : 



Figure 1 — Theoretic structure of thrust-faulting of early Paleozoic 



into the Archean 205 



" 2 — Two sections from Eschwege's Beitrage zur gebirgs- 



kunde Brasiliens 215 



" 3 — The mountains of the diamond district of Abaite 217 



" 4 — Eocene fishes from the bituminous shales at Riacho Doce, 



State of Alagoas 226 



" 5 — Section 10 kilometers long across the Serra de Jacobina 



at Jaguarary, State of Bahia 234 



'* 6 — East-west section across the Serra do Tombador, the 



Serra de Jacobina, and Archean Valley between 235 



" 7 — Structural relations of Serra da Cruz, Serra do Bo- 



queirao, and Serra do Mulato 235 



" 8 — Northwest-southeast section from Rio Sao Francisco to 



the Salitre Valley, about 160 kilometers 235 



" 9 — Section from the Archean near Aracy to the Tertiary 



table-lands to the east 236 



10 — Ant-hills on Rio Utinga 238 



" 11 — Two sections showing the geologic structure of the 



Chapada do Araripe, in southern Ceara 245 



" 12 — Cretaceous fishes from the Serra do Araripe 246 



" 13 — Slice-faulted section 265 



" 14 — ^Above-ground structure of white ants 267 



" 15 — Brazilian method of diamond washing with the wooden 



batea , 269 



" 16 — Section at the Miguel Burnier manganese mines 269 



" 17 — General east-west section south of Tibagy, Parana 289 



" 18 — Sections across a typical sandstone reef at Rio Formoso, 



State of Pernambuco 293 



