342 J. W. Bailey on a new Animalcule. 
where they occurred. A more careful examination showed that 
they moved spontaneously and even with some degree of rapidity; 
and that this motion was due to radiant, branching, and variable 
feelers, or “rhizopods,” which were thrown out near one ex- 
tremity. By attaching these feelers to various objects the animal 
was enabled by means of them, to pull itself along, or to change 
its position at will. 
The most common form in which these creatures occur is that 
ular or pyriform state (figs. 1 and 2) may be considered as the 
normal condition of these creatures; but the imagination can 
scarcely conceive of forms more varied and extraordinary than 
they assume in order to accommodate themselves to the shape of 
substances which they may have swallowed. 
better idea than words can convey of these bizarre shapes 
will be obtained by a glance at some of the figures, (figs. 3, 
5, 6, 7, 8, and 9, on the preceding page,) in which are repre 
sented various individuals in the shapes they presented after 
swallowing bits of woolen, cotton, or linen fibres derived from 
the dust of the room in which they were kept. 
Another curious set of forms appears to be produced by at 
rocess of spontane 
P batieake ous fission or self-division, for I know 0 ia 
w ' Way to explain such forms as those represet'” 
figs. 10, 11, 12. It will be seen that these figures show wh 
