CONTENTS AND ILLUSTRATIONS V 



Page 



Session of the Cordilleran Section, Saturday, December 30 730 



Exceptional nature and genesis of the Mississippi delta [abstract] ; by 



E. W. Hilgard .731 



Register of the meeting of the Cordilleran Section 732 



Accessions to the Library from July, 1905, to October, 1906 ; by H. P. Cushing. 733 



Officers and Fellows of the Geological Society of America 743 



Index to volume 17 .' 755 



ILLUSTRATIONS 



Plates 



Plate 1 — Walcott : Map of portions of northwestern Montana and northern 



Idaho 1 



2 Scapegoat mountain and ridge on west side of Camp creek. 2 



3 " Holland Peak, Swan range, Montana 6 



4 Southeastern slope of mount McDonald, Mission range, 

 Montana 6 



5 ' ' Crest of Mission range, Montana 6 



6 " Limestones and siliceous beds of the Castle Mountain 

 group ; 14 



7 " Spokane shales and quartzite beds of Greyson formation. . 20 



8 ' ' Conglomerate near base of Greyson shales 20 



9 ' ' Kootenai peak 20 



10 ' ' Siyeh limestone 20 



11 " Specimens of Cryptozoan frequens 20 



12 — Tarr and Martin : Map of Alaska, showing location of Yakutat bay. 29 



13 " " Elevated rock bench and sea-cave, Disenchant- 

 ment bay 36 



14 " " " Elevated beaches, Russell fiord and Disenchant- 

 ment bay 37 



15 " " " Elevated beaches, Russell fiord 38 



16 " " " Uplifted alluvial fan and new islands 39 



17 " " " Barnacles and mussels in place above present tide. 40 



18 " " " Evidences of changes in shore levels 42 



19 " " " Submerged forests, Knight island 46 



20 " " " Destroyed forest and parallel faults 49 



21 " " " Faults and Gannett nunatak 50 



22 " " " Mountain face, above Yakutat foreland, and sub- 

 merged forest 53 



23 " " " Sketch map of Yakutat bay 54 



24 — Berkey : Cambric and ordovicic series in southern Minnesota, Illi- 

 nois, and Tennessee 237 



25 — Howe and Cross : Views across and along Cow creek 258 



26 " " " Uncompahgre plateau from Horsefly peak and 

 ridge extending northward from latter 261 



27 " " " Looking southward from a point 4 miles south of 

 West Baldy 264 



28 " " " Looking north up the Animas valley 268 



