218 DROSERA ROTUNDIFOLIA. Cuap. IX, 
rendered for a time insensible to the action of raw meat, but 
sometimes are not thus affected, or in a very slight degree. A 
plant recovers from a small dose, but is easily killed by a larger 
one. 
A plant was left for 30 m. under a bell-glass holding 
19 fluid oz. (539°6 ml.) with eight drops of chloroform, and 
before the cover was removed, most of the tentacles became 
much inflected, though they did not reach the centre. After 
the cover was removed, bits of meat were placed on the glands 
of several of the somewhat incurved tentacles; these glands 
were found much blackened after 6 hrs. 30 m., but no further 
movement ensued. After 24 hrs. the leaves appeared almost 
dead. ; 
A smaller bell-glass, holding 12 finid oz. (340°8 ml.), was now 
employed, and a plant was left for 90s. under it, with only 
two drops of chloroform. Immediately on the removal of the 
glass all the tentacles curved inwards so as to stand perpen- 
dicularly up; and some of them could actually be seen moving 
with extraordinary quickness by little starts, and therefore in 
an unnatural manner; but they never reached the centre. 
After 22 hrs. they fully re-expanded, and on meat being placed 
on their glands, or when roughly touched by a needle, they 
promptly became inflected; so that these leaves had not been 
in the least injured. 
Another plant was placed under the same small bell-glass 
with three drops of chloroform, and before two minutes had 
elapsed, the tentacles began to curl inwards with rapid little 
jerks. The glass was then removed, and in the course of two 
or three additional minutes almost every tentacle reached the 
centre. On several other occasions the vapour did not excite 
any movement of this kind. 
There seems also to be great variability in the degree and 
manner in which chloroform renders the glands insensible to the 
subsequent action of meat. In the plant last referred to, which 
had been exposed for 2m. to three drops of chloroform, some 
few tentacles curved up only to a perpendicular position, and 
particles of meat were placed on their glands; this caused 
them in 5 m. to begin moving, but they moved so slowly that 
they did not reach the centre until 1 hr. 80 m. had elapsed. 
Another plant was similarly exposed, that is, for 2 m. to three 
drops of chloroform, and on particles of meat being placed on 
the glands of several tentacles, which had curved up into a 
perpendicular position, one of these began to bend in 8 m., but 
afterwards moved very slowly; whilst none of the other tentacles 
