 | Asa Gray - 1885 - 756 pages
...It is hardly an exaggeration to say that the tip of the radicle thus endowed, and having the |K>wer of directing the movements of the adjoining parts,...anterior end of the body, receiving impressions from the sense organs, and directing the several movements" (p. 572). i Gray : How Plants Behave, 1872, p. 18.... | |
 | George Thomas Bettany - 1887 - 228 pages
...to other parts, and determines the course pursued by the rootlet in penetrating the ground. "It is hardly an exaggeration to say that the tip of the...acts like the brain of one of the lower animals;" and the brain of Charles Darwin, in working out this acquisition of knowledge for mankind, has added... | |
 | William James Beal - 1887 - 484 pages
...vision. The tip alone of the root is sensitive, and when excited causes the adjoining parts to bend. It acts like the brain of one of the lower animals; the...being seated within the anterior end of the body. And yet the tip of the root of Indian corn, unless held in place, has not power enough to penetrate... | |
 | Literary and Philosophical Society of Liverpool - 1888 - 372 pages
...ground must be determined by the tip ; hence it has acquired such diverse kinds of sensitiveness. It is hardly an exaggeration to say that the tip of the...anterior end of the body, receiving impressions from the sense organs, and directing the several movements." Another singular instance of the power of movement... | |
 | Asa Gray - 1889 - 426 pages
...intercommunication of the several parts." The closing sentence of the book may be appended to this. " It is hardly an exaggeration to say that the tip of the...acts like the brain of one of the lower animals." The movements " excited by light and gravitation," as well as the nyctotropic or sleep-movements so called,... | |
 | Asa Gray - 1889 - 420 pages
...intercommunication of the several parts." The closing sentence of the book may be appended to this. " It is hardly an exaggeration to say that the tip of the...acts like the brain of one of the lower animals." The movements " excited by light and gravitation," as well as the nyctotropic or sleep-movements so called,... | |
 | Jane Hancox Newell - 1889 - 232 pages
...ground must be determined by the tip; hence it has acquired such diverse kinds of sensitiveness. It is hardly an exaggeration to say that the tip of the radicle, thus endowed, and having the power to direct the movements of the adjoining parts, acts like the brain of one of the lower animals ; the... | |
 | Jane Hancox Newell - 1889 - 232 pages
...ground must be determined by the tip ; hence it has acquired such diverse kinds of sensitiveness. It is hardly an exaggeration to say that the tip of the radicle, thus endowed, and having the power to direct the movements of the adjoining parts, acts like the brain of one of the lower animals ; the... | |
 | Charles Mallory Williams, Cora May Williams - 1892 - 608 pages
...many other experiments bearing on the question of sensitivity in plants, the author writes, " It is hardly an exaggeration to say that the tip of the...acts like the brain of one of the lower animals." It is true that the plant does not react with the rapidity which characterizes the animal; Darwin found... | |
 | Charles Mallory Williams, Cora May Williams - 1892 - 618 pages
...many other experiments bearing on the question of sensitivity in plants, the author writes, " It is hardly an exaggeration to say that the tip of the...acts like the brain of one of the lower animals." It is true that the plant does not react with the rapidity which characterizes the animal; Darwin found... | |
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It is hardly an exaggeration to say that the tip of the radicle thus endowed, and having the power of directing the movements of the adjoining parts, acts like the brain of one of the lower animals ; the brain being seated within the anterior end of the... 
