Researches into induced cell-reproduction in amoebae / by John Westray Cropper and Aubrey Howard Drew.

  • Cropper, John Westray.
Date:
1914
Catalogue details

Licence: In copyright

Credit: Researches into induced cell-reproduction in amoebae / by John Westray Cropper and Aubrey Howard Drew. Source: Wellcome Collection.

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    kinetics {e.g. suprarenal extract, cadaverine, etc.), and, from the fact that the induced division forms had been seen to leave the spores as free- swimming flagellates, the possibility was suggested that encystment and excystation might depend on some chemical action brought about or assisted by the auxetics and kinetics present. For these reasons we have therefore investigated the chemical factors which play a part in one of the most prominent features in the life of an amoeba, namely, the formation of resting or protective cysts. The volume is divided for convenience into four parts; in the first, the characters of the amoeba under natural and artificial conditions are described and compared, special methods of ex- amination are shown, and the action of auxetics and kinetics is considered. In the second part, a detailed account of the phenomena of encystment and excystation is given. The third chapter deals with the preparation of pure mixed cultures; and, in the fourth, a description of a parasite of amoebae is given. We desire to express our grateful appre- ciation to the governing body of the Lister Institute of Preventive Medicine, which has for the time being placed some laboratories at our disposal. Most of the illustrations were kindly drawn for us by Miss M. Rhodes. J. W. CROPPER. A. H. DREW,
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