A General History of Animalcules, Including Their Appearances And Localities ...

Cover A General History of Animalcules, Including Their Appearances And Localities ...
A General History of Animalcules, Including Their Appearances And Localities ...
Pritchard, Andrew, 1804-1882
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Ehrenberg made the same remark, and he thence concludes that the Infusoria have several stomachs, which, in one section, are destitute of an intes- tinal canal, while in others they not only possess canals, by which they communicate with each other, but lateral appendages, which besides terminate in a coecum. In consequence of these discoveries, these Infusoria were designated by the name of Polygastric animals. M.
Digitized by Google INFUSORIAL ANIMALCULES. 55 Ehrenberg believes that he has pr
...oved that their stomachs are filled one after another^ and he has figured, more or less completely, the intestines which form the commwii- cation between the different stomachs.
*^ Many observers have already questioned these asser- tions of M. Ehrenberg (see the memoir of M. Dujardin, on this subject, in the 10th volume of the Annaks des Sciences Naturelles). For my own part, I never admitted them^ because^ in the first place^ I never could see t{ie intestines which form the communication between the stomachs, and likewise because I have observed^ many years since, that these supposed stomachs were moving in the interior of the body of many species with great rapidity, in the same manner as the granules which cir- culate in the joints of the chara.


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