The microscope and its revelations . d, e, f), a spiral thread of two or three coHs, which,at fust motionless, after a time begins to move and revolvewithin the cell; and at last the cell-wall gives way, and thespiral thread makes its way out (g), partially straightens itself,and moves actively through the water for some time (h), in atolerably determinate direction, by the lashing action of two and sneh should consult Mr. Varleys memoirs in the Transactions of theSociety of Arts, vols, xlviii., xlix., 1.; some parts of which are cited byMr. Quekett in his Practical Treatise on the Microscope,
The microscope and its revelations . d, e, f), a spiral thread of two or three coHs, which,at fust motionless, after a time begins to move and revolvewithin the cell; and at last the cell-wall gives way, and thespiral thread makes its way out (g), partially straightens itself,and moves actively through the water for some time (h), in atolerably determinate direction, by the lashing action of two and sneh should consult Mr. Varleys memoirs in the Transactions of theSociety of Arts, vols, xlviii., xlix., 1.; some parts of which are cited byMr. Quekett in his Practical Treatise on the Microscope, Third Ed.,pp. 166, 397, et seq. * This multipUcation by bulb els was described by Amici m 1827; but hisobservations seem to have been forgotten by Botanists, until the rediscoveryof the fact by M. Montague. GEI^EEATIVE APPARATUS OF CHARACTER. 363 long and very delicate filaments with which thej are fur-nished.—The exterior of the nucule (a, b) is formed hj fivespirally-twisted tubes, that give it a very peculiar aspect; Fig. Antheridia of Chara fragilis .—a, antheridium or globule deve-loped at the base of pistlllidimn or nucule;—b, nucule enlarged,globule laid-open by the separation of its valves;—c, one of thevalves, with its group of antheridial filaments, each composed of ahnear series of cells, wi thin every one of which an antherozoid isformed;—in d, e, and f, the successive stages of this formation areseen;—and at & is shown the escape of the mature antherozoids, h. 364 MICROSCOPIC FORMS OP VEGETABLE LIPE. and these enclose a central sac containing protoplasm, oil,and starch-globules. At a certain period, the spii-ally-twistedtubes, which form a kind of crown around the summit, sepa-rate from each other, leaving a canal that leads-down to thecentral cell; and it is probable that through this canal theantherozoids make their way down, to perform the act of fer-tilization. Ultimately the nucule falls-off like a seed, andgives origin to a single new plant
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