412 UTRICULARIA NEGLECTA. Cav. XVIL 
in a decayed state. In these six bladders, a large 
number of the quadrifid processes contained transpa- 
rent, often yellowish, more or less confluent, spherical 
or irregularly shaped, masses of matter. Some of the 
processes, however, contained only fine granular 
matter, the particles of which were so small that they 
could not be defined clearly with No. 8 of Hartnack. 
The delicate layer of protoplasm lining their walls 
was in some cases a little shrunk. On three occasions 
the above small masses of matter were observed and 
sketched at short intervals of time; and they certainly 
changed their positions relatively to each other and 
to the walls of the arms. Separate masses sometimes 
became confluent, and then again divided. A single 
little mass would send out a projection, which after a 
time separated itself. Hence there could be no doubt 
that these masses consisted of protoplasm. Bearing 
in mind that many clean bladders were examined with 
equal care, and that these presented no such appear- 
ance, we may confidently believe that the protoplasm 
in the above cases had been generated by the absorp- 
tion of nitrogenous matter from the decaying animals. 
In two or three other bladders, which at first appeared 
quite clean, on careful search a few processes were 
found, with their outsides clogged with a little brown 
matter, showing that some minute animal had been 
captured and had decayed, and the arms here included 
a very few more or less spherical and aggregated 
masses; the processes in other parts of the bladders 
being empty and transparent. On the other hand, it 
must be stated that in three bladders containing dead 
crustaceans, the processes were likewise empty. This 
fact may be accounted for by the animals not having 
been sufficiently decayed, or by time enough not 
having been allowed for the generation of proto- 
