affected, and eleven which were only sub-inflected; after 7 hrs. blade
considerably inflected; after 12 hrs. much re-expansion.
(5) After 4 hrs. all the tentacles but fourteen inflected; after 9 hrs.
30 m. beginning to re-expand.
(6) After 1 hr. thirty-six tentacles inflected; after 5 hrs. all but
fifty-four inflected; after 12 hrs. considerable re-expansion.
(7) After 4 hrs. 30 m. only thirty-five tentacles inflected or
sub-inflected, and this small amount of inflection never increased.
Now for the seven corresponding leaves in water:
(1) After 4 hrs. thirty-eight tentacles inflected; but after 7 hrs.
these, with the exception of six, re-expanded.
(2) After 4 hrs. 20 m. twenty inflected; these after 9 hrs. partially
re-expanded.
(3) After 4 hrs. five inflected, which began to re-expand after 7 hrs.
(4) After 24 hrs. one inflected.
(5), (6) and (7) Not at all affected, though observed for 24 hrs.,
excepting the short tentacles on the borders of the disc, which as
usual formed a ring.
A comparison of the leaves in the solution, especially of the first
five or even six on the list, with those in the water, after 1 hr. or
after 4 hrs., and in a still more marked degree after 7 hrs. or 8 hrs.,
could not leave the least doubt that the solution had produced a great
effect. This was shown not only by the vastly greater number of
inflected tentacles, but by the degree or closeness of their
inflection, and by that of their blades. Yet each gland on leaf No. 1
(which bore 255 glands, all of which, excepting five, were inflected in
30 m.) could not have received more than one-four-millionth of a grain
(.0000162 mg.) of the salt. Again, each gland on leaf No. 3 (which bore
233 glands, all of which, except nine, were inflected in 2 hrs. 30 m.)
could have received at most only the 1/3584000 of a grain, or .0000181
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