CONTENTS AND ILLUSTRATIONS V 



Paga 



Session of the Cordilleran Section, Monday, December 30 539 



Post- Tertiary elevation of the Sierra Nevada ; by H. W. Turner 540 



Coalfields of southern Uinta county, Wyoming [abstract] ; by Wilbur 



C. Knight 542 



Session of the Cordilleran Section, Tuesday, December 31 544 



Geological section of the middle Coast ranges of California [abstract] ; 



by Andrew C. Lawson 544 



Register of San Francisco meeting of Cordilleran Section, 1902 546 



Accessions to Library from June, 1901, to June, 1902 547 



Officers and Fellows of the Geological Society of America 547 



Index to volume 13 567 



ILLUSTRATIONS 



Plates 



Plate 1— Hobbs : Upper cascades of (Farmington) Still river 22 



" 2 " Gorge and falls of the Housatonic (2 figures) 25 



11 3 — Todd : Sketch map of South Dakota, showing moraines 27 



" 4 — Branner: Geological map of the eastern part of the state of Para- 



hyba do Norte 41 



" 5 " Zanthopsis cretacea, Rath bun sp. nov., from Parahyba do 



Norte 43 



11 6 " Sand plain of Cabedello, Parahyba do Norte 52 



" 7 Granite hills at Alagoa Grande, Parahyba do Norte. ... 56 



"8 Lake in the granite region of Alagoa Grande, Parahyba 



do Norte 57 



" 9 Sea-urchin burrows in trachyte at Pedras Pretas, Per- 



nambuco 60 



"10 " Granite point at Gaibii Cabo Santo Agostinho, Pernam- 



buco 61 



" 11 " Geological map of the region about Pernambuco 62 



" 12 Characteristic topography and vegetation of the Pernam- 

 buco coastal sand plain 67 



" 13 Banded gneiss exposed in the Rio Una at Palmares, state 



of Pernambuco 69 



" 14 " Tertiary sediments at Dois Irmaos, near Pernambuco. . . 86 



" J 5 Geological map of the region along the Natal a Nova Cruz 



railway, Rio Grande do Norte 93 



" 16 — Wright: Portion of northern China traversed between Peking and 



Mongolian border 127 



. " 17 " Loess delta and loess bluff (2 figures) 130 



" 18 Houses in and erosions of loess at Shiwantse (2 figures). . 132 



"19 Loess plain bordering deep ravine west of Shiwantse . . . 134 



" 20 Remnants of loess mass near railroad station, Tashkent, 



Turkestan 136 



" Loess exposure 2 miles east of Samarkand 138 



21 



22 — Clark and Bibbins 



Distribution of the formations of the Potomac 

 group in Maryland 187 



