CONTENTS. 



Page. 



No. i. The Geology of Carmelo Bay, by Andrew C. Lawson, with chem- 

 ical analyses and cooperation in the field, by Juan de la 

 C. Posada I 



No. 2. The Soda-Rhyolite North of Berkeley, by Charles Palache 61 



No. 3. The Eruptive Rocks of Point Bonita, by F. Leslie Ransome 71 



No. 4. The Post- Pliocene Diastrophism of the Coast of Southern Califor- 

 nia, by Andrew C. Lawson 115 



No. 5. The Lherzolite-Serpentine and Associated Rocks of the Potrero, 



San Francisco, by Charles Palache 161 



No. 6. On a Rock, from the Vicinity of Berkeley, containing a New Soda 



Amphibole, by Charles Palache 181 



No. 7. The Geology of Angel Island, by F. Leslie Ransome, with a Note 

 on the Radiolarian Chert from Angel Island, and from Buri- 

 buri Ridge, San Mateo County, California, by George Jen- 

 nings Hinde 193 



No. 8. The Geomorphogeny of the Coast of Northern California, by 



Andrew C. Lawson 241 



No. 9. On Analcite Diabase from San Luis Obispo County, California, 



by Harold W. Fairbanks 273 



No. 10. On Lawsonite, a New Rock-forming Mineral from the Tiburon 



Peninsula, Marin County, California, by F. Leslie Ransome... 301 



No. 11. Critical Periods in the History of the Earth, by Joseph Le Conte... 313 



No. 12. On Malignite, a Family of Basic, Plutonic, Orthoclase Rocks, Rich 

 in Alkalies and Lime, Intrusive in the Coutchiching Schists of 

 Poohbah Lake, by Andrew C. Lawson 337 



No. 13. Sigmogomphius Le Contei, a New Castoroid Rodent, from the 



Pliocene, near Berkeley, by John C. Merriam 363 



No. 14. The Great Valley of California: a Criticism on the Theory of Isos- 



tasy, by F. Leslie Ransome 371 



MAPS. 



Geological Map of Carmelo Bay 



Geological Map of Point Bonita 



San Clemente and Santa Catalina Islands 



Index Map, position of Angel Island 



Geological Map of Angel Island 



Sketch Map, position of analcite diabase dykes 

 Sketch Map of Poobah Lake 



(v) 



Plate 1, 6 

 .Plate 6, 74 

 Plate 8, 138 

 194 



Plate 12, 195 



274 

 339 



