. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 11(, a b 7 becomes thick and dark in fig. 9. Fig. 10. Red. The thick- ness of the first laminae was reduced by friction, so that blue and green stripes appear. Fig. 11. Section through bright green, which by over- exposure and overdevelop- ment has become white; h mirror zone, c fine stripes belong to the white; the other laminas be- long to the Please note that these images are extracted from scanned page images that may have

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. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 11(, a b 7 becomes thick and dark in fig. 9. Fig. 10. Red. The thick- ness of the first laminae was reduced by friction, so that blue and green stripes appear. Fig. 11. Section through bright green, which by over- exposure and overdevelop- ment has become white; h mirror zone, c fine stripes belong to the white; the other laminas be- long to the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution

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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840