A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 2
It was just at this time that Abraham Trembley was engaged in his famous experiments on the Hydra , which Leeuwenhock had originally discovered , attached to the leaves of Lemna ...
It was just at this time that Abraham Trembley was engaged in his famous experiments on the Hydra , which Leeuwenhock had originally discovered , attached to the leaves of Lemna ...
Página 3
The celebrity conferred on Trembley by his researches into the structure and economy of Hydra , is known to every one in the least acquainted with the literature of zoology ; but the assiduity of the famous historian of the fresh ...
The celebrity conferred on Trembley by his researches into the structure and economy of Hydra , is known to every one in the least acquainted with the literature of zoology ; but the assiduity of the famous historian of the fresh ...
Página 6
The discovery of the " Polype à Panache , " and the determination of its structure by Trembley and Baker . 6. The determination of the structure of certain marine Polyzoa by the independent and nearly simultaneous labours of Grant ...
The discovery of the " Polype à Panache , " and the determination of its structure by Trembley and Baker . 6. The determination of the structure of certain marine Polyzoa by the independent and nearly simultaneous labours of Grant ...
Página 14
Neither Trembley nor Baker takes any notice of this gelatinoid envelope . M. Dumortier mentions it , and represents it in his figure , * while M. Van Beneden believes it to be an accidental investment acquired by the animal during ...
Neither Trembley nor Baker takes any notice of this gelatinoid envelope . M. Dumortier mentions it , and represents it in his figure , * while M. Van Beneden believes it to be an accidental investment acquired by the animal during ...
Página 23
These currents , which extend into the tentacular crown , were long ago observed by Trembley in Lophopus crystallinus ; but this author contented himself with simply recording their existence , and made no attempt to explain them .
These currents , which extend into the tentacular crown , were long ago observed by Trembley in Lophopus crystallinus ; but this author contented himself with simply recording their existence , and made no attempt to explain them .
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Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
Términos y frases comunes
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young