Radicle consequently partially deflected from Sachs'
curvature.
(11.) Tip of radicle protected with goldbeaters' skin, with a square of
card of the usual dimensions affixed with shellac: after 11 h. greatly
deflected in the plane of the bean, in the direction of Sachs' curvature,
but to a much greater degree and in less time than ever occurs
spontaneously.
(12.) Tip of radicle protected as in last case: after 11 h. no effect, but
after 24 h. 40 m. radicle clearly deflected from the card. This slow action
was probably due to a portion of the goldbeaters' skin having curled round
and lightly touched the opposite side of the tip and thus irritated it.
(13.) A radicle of considerable length had a small square of card fixed
with shellac to its apex laterally: after only 7 h. 15 m. a length of .4 of
an inch from the apex, measured along the middle, was considerably curved
from the side bearing the card.
(14.) Case like the last in all respects, except that a length of only .25
of an inch of the radicle was thus deflected.
(15.) A small square of card fixed with shellac to the apex of a young
radicle; after 9 h.
Pages:
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245