[(1) A small bladder, less than 1/30 of an inch (.847 mm.) in diameter, contained a minute mass of brown, much decayed matter; and in this, a tarsus with four or five joints, terminating in a double hook, was clearly distinguished under the microscope.  I suspect that it was a remnant of one of the Thysanoura.  The quadrifids in contact with this decayed remnant contained either small masses of translucent, yellowish matter, generally more [page 436] or less globular, or fine granules.  In distant parts of the same bladder, the processes were transparent and quite empty, with the exception of their solid nuclei.  My son made at short intervals of time sketches of one of the above aggregated masses, and found that they continually and completely changed their forms; sometimes separating from one another and again coalescing.  Evidently protoplasm had been generated by the absorption of some element from the decaying animal matter.

(2) Another bladder included a still smaller speck of decayed brown matter, and the adjoining quadrifids contained aggregated matter, exactly as in the last case.

(3) A third bladder included a larger organism, which was so much decayed that I could only make out that it was spinose or hairy.  The quadrifids in this case were not much affected, excepting that the nuclei in the several arms differed much in size; some of them containing two masses having a similar appearance.

(4) A fourth bladder contained an articulate organism, for I distinctly saw the remnant of a limb, terminating in a hook.  The quadrifids were not examined.

(5) A fifth included much decayed matter apparently of some animal, but with no recognisable features.  The quadrifids in contact contained numerous spheres of protoplasm.

(6) Some few bladders on the plant which I received from Kew were examined; and in one, there was a worm-shaped animal very little decayed, with a distinct remnant of a similar one greatly decayed.  Several of the arms of the processes in contact with these remains contained two spherical masses, like the single solid nucleus which is properly found in each arm.  In another bladder there was a minute grain of quartz, reminding me of two similar cases with Utricularia neglecta.

As it appeared probable that this plant would capture a greater number of animals in its native country than under culture, I obtained permission to remove small portions of the rhizomes from dried specimens in the herbarium at Kew.  I did not at first find out that it was advisable to soak the rhizomes for two or three days, and that it was necessary to open the bladders and spread out their contents on glass; as from their state of decay and from having been dried and pressed, their nature could not otherwise be well distinguished.  Several bladders on a plant which had grown in black earth in New Granada were first examined; and four of these included remnants of animals.  The first contained a hairy Acarus, so much decayed