Proceedings of the United States National Museum . Illustrations of Types For explanation of plate see t=AGES 37 AN3 38 U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 66, ART. 17 PL. 22. Illustrations of Types For explanation of plate see page 38 U. S. NATIONAL MUSEUM PROCEEDINGS, VOL. 66, ART. 17 PL. 23

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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience