CONTENTS 



PAGE 



No. 1. The Franciscan Sandstone, by E. F. Davis 1 



No. 2. The San Lorenzo Series of Middle California. Stratigraphic and 



Palaeontologic Study of the San Lorenzo Oligocene Series of 



the General Eegion of Mount Diablo, California, by Bruce L. 



Clark 45 



No. 3. The Eadiolarian Cherts of the Franciscan Group, by E. F. Davis .. 235 

 No. 4. A Cestraciont Spine from the Middle Triassic of Nevada, by Pirie 



Davidson - 433 



No. 5. Tertiary Mammalian Faunas of the Mohave Desert Eegion, by 



John C. Merriam 437a 



Index 587-596 



