792 PROCEEDINGS OF THE CORDIiLLERAN SECTION 



The paper was illustrated by specimens and lantern slides. Discussion 

 by A. C. Lawson, H. F. Bain, and others. 



AGE OF THE RANCEO LA BREA BEDS NEAR LOS ANGELES 

 BY JOHN C. MEBBIAM 



The paper was illustrated by lantern slides. 

 The section then adjourned for the day. 



Session of Saturday, March 26 



The meeting was called to order at 9.20 a. m., in room 22, South Hall, 

 and proceeded immediately to the reading of papers presented as follows ; 



SUPPLEMENTARY NOTE ON THE ORGANIZATION OF THE GEOLOGICAL 



SOCIETY 



BY C. H. HITCHCOCK 



Published as pages 741-746 of this volume. 



RECENT FAULTING IN OWENS VALLEY, CALIFORNIA 

 BY WILLARD D. JOHNSON* 



{Al)stract) 



The topography of Owens Valley is strikingly immature. It is complex 

 with arrested works of gradation. Deformation has varied as to the type and 

 the magnitude of its results, the seat of its action, and the periods of its recur- 

 rence and gradation, continually modeling toward symmetry again, has made 

 record of the diastrophic events. 



This paper was illustrated by lantern slides and gave rise to many 

 questions and general discussion. 



PARAGENESIS OF MINERALS 

 BY AUSTIN F. BOGERS" 



(AJ)str(ict) 



Emphasized the interest and importance of the occurrence, association, and 

 origin of minerals. Discussed the use of the term paragenesis. A university 

 course along this line, in which paragenetic varieties of minerals are listed, 

 correlates the facts of mineralogy and petrography and serves as an introduc- 

 tion to the study of ore deposits. 



* Introduced by George D. Louderback. 

 ^ Introdnced by J. C, Branner, 



