408 PROCEEDINGS OF THE CALIFORNIA MEETING 



resting on the Chico comprise (1) the Martinez and Tejon, two local 

 (li\ isioiis of the Eocene; (2) the Monterey (Miocene) group, comprising 

 altci-iiatc formations of sandstones and l)itnminoiis shales, some of which 

 are cliiTls: ( :! ) the San I'ablo formation, and (4) fresh-water Ijeds of the 

 Oriiidaii forination in the middle of the syncline. »Still later than the 

 Orindaii. on the western side of the syncline, is a belt of alternating lavas 

 and laeustral and tliiviatile deposits, which are best exposed on the hill- 

 tops immediately back of the University of California. These strata are 

 crossed in the h'ne of tbe route of this excursion. 



On Tuesday, August 10, a trip to the Yosemite Valley was begun, 

 under the charge of J. A. Taif, Acting Secretary of the Society, and F. C. 

 Calkins, of the United States Geological Survey. This trip occupied 

 seven days. After examining the park, the members became the guests 

 of the Sierra Clul). ^^■hich had all the conveniences for mountain trans- 

 portation and subsistence, and conducted the party up Tenaya Canyon 

 via Mirror and Tenaya lakes to the Sierra Club's main camp at Tuolumne 

 Meadows — a day's journey. Opportunity was given iov an examination 

 of tlie unusual glacial effects exposed in the Tuolumne Meadows locality. 

 From this camp excursions were nuide to study the glacial and other 

 geology in the canyons and higli Sierras. 



Ei:(;isTEii OF Tin-: Califohxia MF:ETixf;. ini."; 



Ealph Arnold John C. Meruiam 



Edson S. Bastin Henry F. Osborn 



Edward W. Berry Sidney Paige 



John C. Braxxei; Horace B. Patton^ 



EoLLix' T. Chamberlix^ Charles Schuchert 



Charles H. Clapp Elias H. Sellards 



Eegixald a. Daly William J. Sixclair 



Arthur L. Day W. S. Taxgieu Smith 



Joseph S. Dillei; Timothy W. Stantox" 



Edwix^ T. Bumble Ealph Vr. Stox'e 



Harold W. Fairbaxks Joseph A. Taff 



Erasmus Haavortfi Cyrus F. Tolmax', Jr. 



Oscar H. Hershfy Hexry W. Turxer 



William H. Hobbs Edward 0. Ulrich 



Charles Keyes Charles E. Weaver 



Ax^DREw C. Lawsox Israel C. White 



W. T). Matthew Bailey Willis 



John E. Wolff 



