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. An introduction to vegetable physiology. Plant physiology. Fie. 7.âCells feom the Leaf of Elodea. x 300. «, nucleus; p, protoplasm, in which are embedded numerous chloro- piasts. The arrows show the direction of the movement of the protoplasm. Fig. 8.âTwo Cells fbom a â Staminal Haib of Trades- cantia. x 300. The arrows show the direction of the movement of the protoplasm. movements are spoken of as rotation when the current flows uniformly round the cell, or as circulation when the path has a more complicated course. It has been mentioned that, with very rare exceptions, all cells contain
. An introduction to vegetable physiology. Plant physiology. Fie. 7.âCells feom the Leaf of Elodea. x 300. «, nucleus; p, protoplasm, in which are embedded numerous chloro- piasts. The arrows show the direction of the movement of the protoplasm. Fig. 8.âTwo Cells fbom a â Staminal Haib of Trades- cantia. x 300. The arrows show the direction of the movement of the protoplasm. movements are spoken of as rotation when the current flows uniformly round the cell, or as circulation when the path has a more complicated course. It has been mentioned that, with very rare exceptions, all cells contain a specially differentiated portion of protoplasm, known as the nucleus (figs. 6 and 9). This struc- ture does not occupy a very definite position in the cell, but not infre- quently is found almost in the centre. If the whole of the space is not filled with protoplasm, the part in which the nucleus lies is con- nected with the lining layer by means of strands or bridles. In other cases the nucleus is embedded in. Fig. 9.âNucleus of a Cell, SHOWING AbEANGEMENT OF THE CHEOMATIN THEEADS. x 1000. t a, threads; 6, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Green, J. Reynolds (Joseph Reynolds), 1848-1914. Philadelphia, P. Blakiston
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