STANFORD UNIVERSITY PUBLICATIONS 
UNIVERSITY SERIES 
GEOLOGICAL SCIENCES 
Volume II Part 2 
The Marine Shells of the West 
Coast of North America 
VOL. II 
PART II 
BY 
IDA SHEPARD OLDROYD 
Curator of the Geological Museum 
PUBLISHED FOR THE UNIVERSITY BY 
STANFORD UNIVERSITY PRESS 
STANFORD UNIVERSITY, CALIFORNIA 
1927 
