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SMITHSONIAN MISCELLANEOUS COLLECTIONS
VOLUME 57, NUMBER 5


CAMBRIAN
GEOLOGY AND PALEONTOLOGY

II


No. 5.—MIDDLE CAMBRIAN ANNELIDS

With Six Plates


BY
CHARLES D. WALCOTT



(Publication 2014)


CITY OF WASHINGTON
PUBLISHED BY THE SMITHSONIAN INSTITUTION
SEPTEMBER 4, 1911