Licence: Public Domain Mark
Credit: A first book in organic evolution / by D. Kerfoot Shute. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![They have no true flowers containing stamens, pistils, and seeds; they propagate by means of spores. Cten-oph'o-ra [Gr. kteis, comb; phero, bear.] A subdivision of coelenterates with paddle-like locomotive plates arranged in eight meridional rows on the outer surface of the body. Cyc-a-da'ce-ae [Gr. kykos, African coco-palm.] The cycad family of plants (gymnospermous), of fern-like or palm-like aspect. Cys-toi'de-a [Gr. kystis, bladder; eidos, form.] Cy-no-ceph'a-lus [Gr. kyon, dog; kephale, head.] Cy'to-plasm [Gr. kyo, be pregnant; plasma, <plasso, form.] Protoplasm; especially that portion of a cell apart from the nucleus. Dal'ton-ism [Dalton, chemist, who had color-blindness.] Color-blindness, especially red-blindness. De-cid'u-ate [Lat. deciduus, falling off.] Shed at periodic times. Des'mids [Gr. desmos, band.] Unicellular plants of minute size; bright-green in color; mainly solitary, fresh-water algae. Dev-o'ni-an [Devonshire, England.] The name given by Murchison to Palaeozoic rocks in Devonshire, England. Di'a-toms [Gr. dia, through; tome, cutting.] Microscopic unicellular algae inhabiting salt or fresh water. Each indi- vidual (frustule) consists of two flint valves which are more or less symmetrical. They are either isolated or attached together in a series. Di-cot-y-le'don-es [Gr. dikotylos, with two hollows.] The most important and largest class of flowering plants. Char- acterized by having seeds with two cotyledons, exogenous stems, and leaves that are netted-veined; the parts of the flower mostly in fours or fives. Di-del'phi-a [Gr. di-, two; delphys, womb.] A subclass of mammals, as the Marsupials, having a double womb and no placenta. Dif-flu'gi-a pyri-form’is [Lat. dijfluere, to flow apart; pyrum, pear; forma, form.] Di-no-sau'ri-a [Gr. demos, terrible; sauros, lizard.] Mesozoic land reptiles. Dip no-i [Gr. di-, two; pneo, breathe.] Fishes with regular gills, a double or single lung, and nostrils inside as well as outside the mouth.](https://iiif.wellcomecollection.org/image/b21900905_0307.jp2/full/800%2C/0/default.jpg)