4<)0 PROCEEDINGS OP COLUMBUS MEETING. 



On reassembling at 2 o'clock p. ra. the following paper was read : 



GEOLOGY OF THE TAYLORVILLE REGION OF CALIFORNIA : PART I — THE 



GEOLOGIC COLUMN. 



BY J. S. DILLER. 



This was immediately followed by — 



JURA AND TRIAS AT TAYLORVILLE, CALIFORNIA. 

 BY ALPHEUS HYATT. 



The two papers were discussed by E. W. Claypole, W. H. Pettec. I. ('. 

 White and G. K. Gilbert, 



The next paper was a continuation of one of the preceding : 



GEOLOGY OF THE TAYLORVILLE REGION OF CALIFORNIA : PART II — 



STRUCTURE. 



BY J. S. DILLER. 



The three papers are printed as pages 369-412 of this volume. 



In the absence of the author, the following paper was read in abstract 

 by C. Willard Hayes : 



STRATIGRAPHY AND SUCCESSION OF THE ROCKS OF THE SIERRA NEVADA 



OF CALIFORNIA. 



BY JAMES E. MILLS. 



This communication was discussed by G. K. Gilbert, C. W. Hayes and 

 J. 8. Diller. It forms pages 413-444, with plate 13 of this volume. 



The following paper was read by J. S. Diller, the author not being 

 present : 



SECONDARY BANDING IN GNEISS.* 

 BY WM. II. ITOBBS. 



The fact that secondary cleavage or foliation is to he found in the schistose rocks 

 of Berkshire county, Massachusetts, is mentioned by Dana in his papers on the 

 geology of the region. The extent to which it is developed and the importance of 

 carefully distinguishing it from planes of stratification in the working out of geo- 

 logic structure was first emphasized in the study of the Greylock group by the 



♦ Published by permission of the Director of (lie Pnite<l States GoolntjicMl Survey. 



