THE JOHNS HOPKINS UNIVERSITY 

 STUDIES IN GEOLOGY 



No. 3 



EDITED BY 



EDWARD BENNETT MATHEWS 



THE PALEONTOLOGY 



OF THE ZORRITOS FORMATION 



OF THE NORTH PERUVIAN 



OIL FIELDS 



BY 



EDMUND M. SPIEKER 



BALTIMORE 

 THE JOHNS HOPKINS PRESS 



1922 



