PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 

 Vol. VIII, No. 4, pp. 113-156, pis. 3-6 July 19, 1918 



IV 



Geology of the Northern End of the 

 Tampico Embayment Area 



BY 



E. T. DUMBLE 



Consulting Geologist, Southern Pacific Company 



^"^ AUG 2 8-'^ 





'RlHy^'"^^iM% 



c.V 



JOHN W. HENDRIE PUBLICATION ENDOWMENT 



SAN FRANCISCO 



Published by the Academy 



1918 



