CARBONATE OF AMMONIA ON CHLOROPHYLL-BODIES. 275 
into brownish granular matter, and the irregular and, as I sup- 
posed, just reformed chlorophyll-grains in the adjoining cells ran 
together and became confluent, forming narrow rims along the 
walls. 
After intervals of 4, 6, and 8 days from the time when the 
drops were given, 15 central tentacles on three of the leaves 
were examined ; and in all of these tentacles, excepting one in 
which there was still much aggregated matter, chlorophyll-grains 
could be seen. After 11 days one of the leaves, from which a 
small piece had been cut off after an interval of 24 hours, and in 
which most of the central tentacles then included no chlorophyll- 
grains, was now reexamined. The central tentacles appeared 
perfectly healthy and were secreting: in 8 out of 10 of them, 
the cells included chlorophyll-grains having the usual appear- 
ance; in the other two tentacles there was still much aggregated 
matter and no ordinary chlorophyll-grains, but some few irre- 
gularly shaped chlorophyll-grains. With respect to the second 
leaf, from which a small piece had been cut off, and in which the 
central tentacles did not then (7. e. after 24 hours) contain a 
single chlorophyll-grain, only a very few of the central tentacles 
now (7. e. after 11 days) appeared healthy ; but in two of them, 
Which appeared quite uninjured, there were innumerable perfect 
chlorophyll-grains in all the cells from the glands down to the 
base. 
Considering the whole of the evidence here given, there can 
hardly be a doubt that with the leaves of Drosera as soon as the 
aggregated masses break up, and even before they are wholly 
redissolved, grains of chlorophyll are reformed. 
Drosophyllum lusitanicum.—The footstalks of the tentacles are 
bright green, from the large number of chlorophyll-grains which 
they contain. Two leaves were immersed in a solution of carbo- 
nate of ammonia (4 to 1000) for 23 and 24 hours, and the cells 
of the footstalks now contained innumerable spheres, some much 
smaller and some much larger than the grains of chlorophyll, 
and other oddly shaped masses, more or less confluent, of trans- 
lucent bright-yellow matter, which, when irrigated with alcohol, 
instantly broke up into fine granular matter. I looked in vain 
in several of these tentacles for grains of chlorophyll. Another 
leaf was immersed for only 164 hours in a weaker solution of 
2 to 1000; but this sufficed to produce an abundance of yellow 
translucent bodies, which were seen to change their forms greatly, 
