CARBONATE OF AMMONTA ON CHLOROPHYLL-BODIES. 207 
bited with the utmost plainness the now colourless grains. The 
oddly-shaped green masses exhibited none of the movements so 
conspicuous in the case of Drosera; but this could hardly have 
been expected after the injury caused by slicing ; and the leaves 
are much too opaque to be examined without the aid of sections. 
Some other sections from the same immersed leaf presented a 
rather different appearance, as they contained much extremely 
fine granular green matter, which became pale brown after being 
kept in alcohol. No chlorophyll-grains could be seen in any of 
these sections. After adding iodine (dissolved in water with 
iodide of potassium), many particles of starch became visible by 
being coloured blue; but none were present in the first described 
section. Some of the larger rounded aggregated masses were 
coated with blue particles. Others were quite free of such par- 
ticles, and were coloured by the iodine bright orange. 
A superficial slice was taken from a fresh leaf, showing the 
upper epidermie and glandular surface, and all the cells abounded 
with large grains of chlorophyll. But with a leaf which had been 
immersed for 24 hours in a solution of carbonate of ammonia 
(7 to 1000), a similar section presented a wonderfully different 
aspect; no chlorophyll-grains could be seen. Some of the 
cells contained one or two transparent yellowish spheres, which, 
it eould hardly be doubted, had been formed by the fusion of 
previously-existing chlorophyll-grains. Other cells contained 
very fine brownish granular matter, and this apparently had been 
deposited from the cell-sap with its colour changed. This gra- 
nular matter was generally aggregated into one or two either 
separate or more or less confluent spherical balls, having a rough 
surface. Sometimes a dark-brown granular sphere was sur- 
rounded by a zone of paler granular matter. İn other cases 
brown granular spheres lay in the centre of transparent yellow 
spheres. In one case a sphere of this latter kind, with two 
others consisting exclusively of the yellowish transparent matter, 
were observed in the same cell. In other cases the brown balls 
were surrounded merely by an extremely narrow border of trans- 
parent matter. It appears that in these cases the granular 
matter had first been deposited, and then had become more or 
less aggregated into balls; and that afterwards the yellowish 
transparent matter, formed by the fusion of the modified chlo- 
rophyll-grains, had aggregated either round the granular matter 
or into independent spherical and oddly-shaped masses. 
