Annual report of the United States Geological Survey to the Secretary of the Interior . CTENOPHYLLUM DENSI FOLlU M, FR-**^ TWENTIETH ANNUAL REPORT PART II PL. LXI. ?1RASSIC OF OROVILLE CALIFORNIA LIBRARY OF THE UNIVERSITY «f ILLINOIS. PLATE LXII. 20 GEOL, PT 2 33 513 PLATE L X I I. Otknophyllcm grandifolu m Stokksii Font 359 514 LIBRARY OF THE UNIVERSITY af ILLINOIS,

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Keywords: ., book, bookcentury1800, booksubjectgeology, booksubjectwatersupply