130 DROSERA ROTUNDIFOLIA. [Cuar. VII. 
(T) After 20 m. some inflection ; after 2 hrs. a considerable number 
of tentacles inflected; after 7 hrs. 45 m. began to re-expand. 
(8) After 38 m. twenty-eight tentacles inflected; alter 3 hrs. 45 m. 
thirty-three inflected, with most of the submarginal tentacles sub- 
inflected; continued so for two days, and then partially re-expanded. 
(9) After 38 m. forty-two tentacles inflected; after 5 hrs. 12 m. 
sixty-six inflected or sub-inflected; after 6 hrs. 40 m. all but twenty- 
four inflected or sub-inflected ; after 9 hrs. 40 m. all but seventeen 
inflected ; after 24 hrs. all but four inflected or sub-inflected, only a 
few being closely inflected; after 27 hrs. 40 m. the blade inflected. 
The leaf remained in this state for two days, and then began to re- 
expand. l 
(10) After 38 m. twenty-one tentacles inflected; after 3 hrs. 12 m. 
forty-six tentacles inflected or sub-inflected ; after 6 hrs. 40 m. all but 
seventeen inflected, though none closely; aiter 24 hrs. every tentacle 
slightly curved inwards; after 27 hrs. 40 m. blade strongly inflected, 
and so continued for two days, and then the tentacles and blade very 
slowly re-expanded. 
(11) This fine dark red and rather old leaf, though not very large, 
bore an extraordinary number of tentacles (viz. 252), and behaved in 
an anomalous manner. After 6 hrs. 40 m. only the short tentacles 
round the outer part of the disc were inflected, forming a ring as so 
often occurs in from 8 to 24 hrs. with leaves both in water and the weaker 
solutions. But after 9 hrs. 40 m. all the outer tentacles except 
twenty-five were inflected, as was the blade in a strongly marked 
manner. After 24 hrs. every tentacle except one was closely inflected, 
and the blade was completely doubled over. 'l'hus the leaf remained 
for two days, when it began to re-expand. | may add that the three latter 
leaves (Nos. 9, 10, and 11) were still somewhat inflected after three 
days. The tentacles in but few of these eleven leaves became closely 
inflected within so short a time as in the previous experiments with 
stronger solutions, 
ove will now turn to the twenty corresponding leaves in water. 
Nine had none of their outer tentacles inflected ; nine others had from 
one to three inflected; and these re-expanded after 8 hrs. The 
remaining two leaves were moderately affected ; one having six tentacles 
inflected in 34 m.; the other, twenty-three inflected in 2 hrs. 12 m.; 
and both thus remained for 24 hrs. None of these leaves had their 
blades inflected. So that the contrast between the twenty leaves in 
water and the twenty in the solution was very great, both within the 
first hour and after from 8 to 12 hrs. had elapsed. 
Of the leaves in the solution, the glands on leaf No. 1, which in 2 
hrs. had all its tentacles except eight inflected, were counted and found 
to be 202. Subtracting the eight, each gland could have received only 
the ygs4o00 Of a grain (*0000411 mg.) of the phosphate. Leaf No. 9 
had 213 tentacles, all of which, with the exception of four, were 
inflected after 24 hrs., but none of them closely; the blade was also 
inflected ; each gland could have received only the setivas of a grain, 
