CONTENTS 



Pages 

 Sites and Nature of the North American Geosynclines. 



Presidential Address by Charles Schuchert - - - - 151-230 



Kober's Theory of Orogeny. By Chester R. Longwell - - 231-242 



The Asiatic Arcs. By William Herbert Hobbs - - - - 243-252 



Cross-section of the Appalachians in Southern New England. 



By J. B. Woodworth 253-262 



Structure of the Rocky Mountains in Idaho and Montana. 



By George Rogers Mansfield --------- 263-284 



Building of the Southern Rocky Mountains. By Willis T. 



Lee 285-308 



With Notes on Isostasy. By C E. Van Orstrand ; and 

 Elastic Yielding of the Earth's Crust Under a Load of 

 Sedimentary Deposits. By Walter D. Lambert. 



Outlines of Appalachian Structure. By Arthur KeithJ - - 309-380 



Contribution to the Hypothesis of Mountain Formation. 



By E. C. Andrews 381-400 



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