Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 501
nd of imbedded granular structures or microsomes/A distinct substance, known as nuclein, absent from the cyto-plasm, appears to enter into the composition of the nucleus. Thedivision of the nucleus may take place either directly, when theprocess is known as fragmentation ;; or indirectly. In the… … Fig. 866. —Division of the pollen-mother-cells of Fritillariapersica. (From Stras-burger and Hillhouses Practical Botany, published by Sonnenschein.) consisting of an equatorial disc, the nuclear plate, and delicate spindle-fibres which converge towards the two poles of the spindle.To follow out…
Microscopy
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