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Scientific American, Vol. 45, No. 11 (September 1881) (1881)
leaf 8
uders. Fig. 5.—Operculum of Natlca heros. Many other animals also adopt similar methods for protec- Pig. 3 is one of the most common of our eyestone bear- These curious and puzzling hornlike objects are always tion. ing turbos, which, in the engraving, is shown ustural size. to be met with on the… … branchial filaments (two hundred and fifty on stomachic diflSculties. each side). The suckers, forty on each side, Pig. 4 is one of the most beautiful operculums THE OCTOPUS. ©1881 SCIENTIFIC AMERICIAN, INCPatented · Machine · Feet · Improved · Boiler · Patents · Scientific American · Iron · Water power · Reducing agents · Sewing machine · Electric current · Gutta percha · Cast Iron · Sheet metal · Cinnamic acid · Trade catalogs
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