Squares of the card-like paper were fixed with
shellac to the tips of 15 radicles, and ten of these became conspicuously
bowed from the perpendicular and from the squares; two slightly, and three
not at all. But two of the latter were not real exceptions, as they were at
first very short, and hardly grew afterwards. Some of the more
[page 175]
remarkable cases are worth describing. The radicles were examined on each
successive morning, at nearly the same hour, that is, after intervals of 24
h.
[No. 1. This radicle suffered from a series of accidents, and acted in an
anomalous manner, for the apex appeared at first insensible and afterwards
sensitive to contact. The first square was attached on Oct 19th; on the
21st the radicle was not at all curved, and the square was accidentally
knocked off; it was refixed on the 22nd, and the radicle became slightly
curved from the square, but the curvature disappeared on the 23rd, when the
square was removed and refixed. No curvature ensued, and the square was
again accidentally knocked off, and refixed. On the morning of the 27th it
was washed off by having reached the water in the bottom of the jar.
Pages:
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306