4 PROCEEDINGS OF THE AXX ARBOR MEETING 



Page 



Session of Saturday morning, December 30 SO 



Titles and abstracts of papers and discussions thereon, presented be- 

 fore the morning session 80 



Geological reconnaissance in Mongolia [abstract and discussion] ; 

 by Charles P. Berkey SO 



Problem of mild geological climates [abstract] ; by Ellsworth 

 Huntington 81 



Further experiments on the fracturing of hollow brittle spheres 

 and their bearing on major diastrophism [abstract and discus- 

 sion] : by Walter H. Bucher 81 



Some structural features of the plains area of Alberta caused by 

 Pleistocene glaciation ; by Oliver B. Hopkins 82 



Correspondence between the Gondwana system of Hindustan and 

 the Newark system of the eastern United States [abstract and 

 discussion] ; by William H. Hobbs 82 



Quantitative criteria in paleogeography [abstract and discus- 

 sion] ; by Raymond C. Moore 85 



Keweena'w geothermal gradients and the ice age [abstract] : by 



Alfred C. Lane 86 



Votes of thanks 87 



Titles and abstracts of papers of Group A and discussions thereon ... 87 



Physical history of the Colorado Front Range [abstract] : by 

 F. M. Van Tuyl and G. W. Machamer 87 



Structural featvires of the Colorado Plateau and their origin : by 

 Raymond C. Moore 88 



Structure of the Spring Mountain Range, southern Nevada [ab- 

 •stract] ; by D. F. Hewett 89 



Pleistocene of northwestern Illinois : a graphic presentation of 

 some of the chief lines of evidence [abstract] : by Morris 'SI. 

 Leighton 90 



Fossiliferous loess beneath tilted (^alena dolomite at the border 

 of the Belvidere lobe, in northwestern Illinois [abstract] ; by 

 Morris M. Leighton 90 



Late Tertiary and Pleistocene terrace plains of the middle Atlan- 

 tic Coastal Plain [abstract]: by Chester K. Wentworth 91 



Glacial deposits of Missouri and adjacent districts [abstract] ; 

 by Frank Leverett 91 



Glacial drainage on the Columbia I'lateau of Washington: by J. 

 Harlen Bretz 92 



Glacial lake problems [abstract] ; by George H. Chadwick 92 



Ice action on inland lakes [abstract] ; by Irving D. Scott 92 



Banded postglacial clay near New York City [abstract] : by Ches- 

 ter A. Reeds 92 



Origin and history of extinct Lake Calvin. Iowa [abstract] ; by 

 Walter H. Schoewe 93 



Physiography of the I'aria River valley, southern Utah [ab- 

 stract] ; by Raymond C. Moore 94 



