Licence: Public Domain Mark
Credit: A history of the British zoophytes / by George Johnston. 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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![CONTENTS History of Zoophytology, Page 3—29 Opinions of the Ancients, 3—4 Imperato, 4 Peyssonel and Reaumur, 5—7 J ussieu. 8 Peyssonel and Parsons, 10—1] Baker, 11—13 ElUs, 13—17 Linnaeus, 17-20 Baster, 20—23 Pallas and Ellis, 24—27 Nature of Sponges, 28—29 and 325 Zoophytes, definition of - - 30—31 Polypes, what ? - - 32 Their distinction into two glasses. ■ 33 The structure of Ascidian polypes. 33—36 Hydraform polypes. 36—38 Asteroid polypes. 38—41 Helianthoid polypes. 41 Circulation of the Sertulariadae, 41—i3 Ascidian polypes. “ 43—45 Food of Polypes, - - - 45—46 Generation of polypes, and their ova, 46—48 Evolution of the ova. 48—49 The ova of the Flustrae, 50—51 Polypidoms, Chemical composition of. 52—53 and 76—77 Their forms. 53—54 Their formation. 55 Zoophytes, classification of, by Ellis, 55 Linnaeus, 56 Pallas, 57 Muller, 58 Blumenbach, 59 Cuvier, - 59—61 Lamouroux, 62—64 Lamarck, 65—66](https://iiif.wellcomecollection.org/image/b21910479_0019.jp2/full/800%2C/0/default.jpg)
