CONTENTS. 



Pack. 



No. i. The Geology of Point Sal, by Harold VV. Fairbanks r 



No. 2. On Some Pliocene Ostracoda from near Berkeley, by Frederick 



Chapman 93 



No. 3. Note on Two Tertiary Faunas from the Rocks of the Southern 



Coast of Vancouver Island, by John C. Merriam 101 



No. 4. The Distribution of the Neocene Sea-urchins of Middle California, 

 and Its Bearing on the Classification of the Neocene Forma- 

 tions, by John C. Merriam 109 



No. 5. The Geology of Point Reyes Peninsula, by F. M. Anderson . . . 119 



No. 6. Some Aspects of Erosion in Relation to the Theory of the Pene- 

 plain, by W. S. Tangier Smith 155 



No. 7. A Topographic Study of the Islands of Southern California, by 



W. S. Tangier Smith . 179 



No. 8. The Geology of the Central Portion of the Isthmus of Panama, 



by Oscar H. Hershey 231 



No. 9. A Contribution to the Geology of the John Day Basin, by John C. 



Merriam 269 



No. 10. Mineralogical Notes, by Arthur S. Eakle, with Chemical Analyses 



by W. T. Schaller 315 



No. 11. Contribution to the Mineralogy of California, by Walter C. 



Blasdale 327 



No. 12. The Berkeley Hills. A Detail of Coast Range Geology, by- 

 Andrew C. Lawson and Charles Palache 349 



Index ■. 451 



MAPS 



Geological Map of Point Sal, Plate 1 4 



Geological Map of Point Reyes Peninsula, Plate 4 123 



Islands of Southern California, Plate 5 ... 1S1 



Geological Map of the Isthmus of Panama 235 



North Central Oregon, Plate 6 . . 271 



Geological Map of a Portion of the Berkeley Hills 450 



