. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. U-— Proof obtained by exposing for five minutes a photographic plate covered with paper lace to the light of a photogenic organ of the Pyrophorus. 12.—Photogenic elements: 1, photogenic cell; 2, granular separation in the nucleus ; 3 and 4, photogenic granulations float- ing in the liquefied contents of the cell; 5. gran- ulations set at liberty by the destruction of the cell wall; 6, photogenic granulation. 7, vacuo- lized condition of the
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. U-— Proof obtained by exposing for five minutes a photographic plate covered with paper lace to the light of a photogenic organ of the Pyrophorus. 12.—Photogenic elements: 1, photogenic cell; 2, granular separation in the nucleus ; 3 and 4, photogenic granulations float- ing in the liquefied contents of the cell; 5. gran- ulations set at liberty by the destruction of the cell wall; 6, photogenic granulation. 7, vacuo- lized condition of the granulation; 8, 9, 10, passage of the granulation to the radio-crystal- line condition. Physiological 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
