YOLTJME 9 



1. New Species of the Hipparion Group from the Pacific Coast and Great Basin Prov- 



inces of North America, by John C. Merriam 10c 



2. The Occurrence of Oligocene in the Contra Costa Hills of Middle California, by 



Bnice L. Clark 10c 



3. The JSpigene Profiles of the Desert, by Andrew C. Lawson 25c 



4. New Horsey from the Miocene and Pliocene of California, by John C. Merriam JOc 



