TITLES OF PAPERS PRESENTED 615 



CONGLOMERATE "PUDDINGS" FROM PARIA RIVER, UTAH 

 BY J. E. TALMAGB 



A brief abstract is published in Science, February 9, 1900, volume xi, 

 page 220. 



AN EARLY GEOLOGICAL EXCURSION 

 BY JOSEPH LE CONTE 



A brief abstract is published in Science. February 9, 1900, volume xi, 

 page 221. 



THE SANDSTONE REEFS OF BRAZIL 

 BY JOHN C. BRANNER 



The ninth paper was read by A. C. Lawson, in the absence of the 

 author: 



A TOPOGRAPHIC STUDY OF THE ISLANDS OF SOUTHERN CALIFORNIA 

 BY W. S. TANGIER SMITH (INTRODUCED BY A. C. LAWSON) 



A brief abstract is published in Science, February 9, 1900, volume xi, 

 page 221. 



The tenth paper was read by title : 



THE GEOLOGICAL SIGNIFICANCE OF SOIL STUDY 

 BY E. W. HILGARD 



A brief abstract is published in Science, February 9, 1900, volume xi, 

 page 221. 



The eleventh paper was read by the author : 



THE PENEPLAIN QUESTION ON THE PACIFIC COAST 

 BY H. W. FAIRBANKS 



The next two papers, in the absence of the authors, were read by A. C. 

 Lawson : 



THOMSONITE, MESOLITE, AND CHABAZITE FROM GOLDEN, COLORADO 



BY HORACE B. PATTON 



The paper is printed as pages 461 to 474 of this volume. 



LXXXVI— Bull. Geol. Soc. Am., Vol. 11, 1899 



