. The microscope and its revelations. sseen in the hairs of a plant, thecells of the epiderm also displayit. provided that their walls arenot so opaque or so stronglymarked as to prevent the move-ment from being epiderm may be most readilytorn off from the stalk or themidrib of the leaf, and mustthen be examined as speedilv aspossible, since it loses its vitalitywhen thus detached much soonerthan do the hairs. Even whenno obvious movement of particlesis to lie seen, the existence of a cyclosis may be concluded from the peculiar arrangement of themolecules of the protoplasm, w
. The microscope and its revelations. sseen in the hairs of a plant, thecells of the epiderm also displayit. provided that their walls arenot so opaque or so stronglymarked as to prevent the move-ment from being epiderm may be most readilytorn off from the stalk or themidrib of the leaf, and mustthen be examined as speedilv aspossible, since it loses its vitalitywhen thus detached much soonerthan do the hairs. Even whenno obvious movement of particlesis to lie seen, the existence of a cyclosis may be concluded from the peculiar arrangement of themolecules of the protoplasm, which are remarkable for their highrefractive power, and which, when arranged in a -moving as bright lines across the cell; and these lines, 011 beingcarefully watched, are seen to alter their relative positions. Theleaf of the common Plaittayo (plantain) furnishes an excellent exampleof cyclosis, the movement being distinguishable at the same timeboth in the cells and in the hairs of the epiderm torn from its stalk Y Y 2. FIG. 528.—Rotation of fluid in hairs ofTradcscaniia virginica: A,portion ofepiderm with hair attached ; a, />, ]living this warmth, while theobject is
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901
