THESOUTHWE. 



MUSEUM HiLL 



AVENUE 4f. / NVVA 



LO!: 



UNIVERSITY OF OREGON PUBLICATION 



VOL. I AUGUST, 1920 NO. 6 



FOSSIL MOLLUSKS FROM THE 



JOHN DAY BASIN IN 



OREGON 



CONTAINED IN THE CONDON MUSEUM OF THE 

 UNIVERSITY OF OREGON 



BY 



G. DALLAS HANNA 



Application made at the postoffice at Eugene, Oregon, for entrance as second-class matter 



