TITLES OF PAPERS 625 



Then was read 



BEARING OF THE TERTIARY MOUNTAIN BELT UPON THE ORIGIN OF THE 



EARTH'S PLAN 



BY FRANK BURSLEY TAYLOR 



This paper will appear in volume 21. It was discussed by H. F. Keid, 

 B. K. Emerson, J. Barrell, W. H. Hobbs, A. P. Coleman, and F. B. 

 Taylor. 



The session adjourned at 12.30 p. m. 



The Society convened again at 2.10 p. m. in two sections. The first 

 paper read in the main section, under the chairmanship of President 

 Calvin, was 



ON FAULTS 

 BY HARRY FIELDING REID 



This paper has been published as pages 171-196 of this volume. 

 This was followed by 



MASS MOVEMENTS IN TECTONIC EARTHQUAKES 

 BY HARRY FIELDING REID 



These two papers were discussed by W. H. Hobbs and H. F. Eeid. 

 The next paper was read by title 



ALASKAN EARTHQUAKE OF 1899 

 BY LAWRENCE MARTIN* 



The Society then listened to the oral presentation of the paper : 



LANDSLIDE ACCOMPANIED BY BUCKLING, AND ITS RELATION TO LOCAL 



ANTICLINAL FOLDS 1 



BY FRANK R. VAN HORN 



Contents Page 



Introduction 626 



Geology of the region 626 



The landslide 626 



Occurrence 626 



Formation of the crack 626 



Buckling 627 



Settling 627 



Classification of the dislocation 628 



Causes of the fracture and attendant phenomena 628 



Relation to anticlines along stream valleys 630 



Other landslides of similar nature 630 



Conclusion 631 



* Introduced by C. K. Leith. 



1 Manuscript received by the Secretary of the Society October 21, 1909. 



