STANFORD UNIVERSITY PUBLICATIONS 
UNIVERSITY SERIES 
GEOLOGICAL SCIENCES 
Volume II Part 1 
The Marine Shells of the West 
Coast of North America 
VOL. II 
PART I 
BY 
IDA SHEPARD OLDROYD 
Curator of the Geological Museum 
PUBLISHED FOR THE UNIVERSITY BY 
STANFORD UNIVERSITY PRESS 
STANFORD UNIVERSITY, CALIFORNIA 
1927 
