is no great hardship in this.

In this section are included some of the most beautiful, as well as
common of the tribe. The forms of the umbrella are often most lovely,
and present an astonishing variety. As an example of the beauty which
they sometimes display, we may refer to a species which resembles an
exquisitely formed glass-shade, ornamented with a waved and tinted
fringe. The most perfect grace of form, the transparency of the
crystal, and colour as delicate as that of the flower, combine to
render this frail being one of the loveliest of living things.

In another section, locomotion is effected by a modification of
ciliary apparatus. We have a familiar example in the _Beroe_ of our
own seas, a most attractive little being, and a prime favourite with
naturalists, who have described its habits and celebrated its beauty
with enthusiasm. We shall not soon forget the delight with which we
first made acquaintance with this graceful little rover. While
rambling along the shore in quest of marine animals, our attention was
arrested by a drop of the clearest jelly, as it seemed to be, lying on
a mass of rock, from which the tide had but just receded. On
transferring it to a phial of sea-water, its true nature was at once
revealed to us. A globular body floated gracefully in the vessel,
scarcely less transparent than the fluid which filled it. Presently it
began to move up and down within its prison-house, and the paddles by
means of which the beroe dances along its ocean-path were distinctly
visible. These paddles are nothing more or less than cilia of a
peculiar kind, ranged in eight bands upon the surface of the body.
They are set in motion at the will of the animal, and their incessant
strokes propel it swiftly through the water. By stopping some of its
paddles, and keeping others in play, the beroe can change its course
at pleasure, and so wander 'at its own sweet will,' through the
trackless waste. Beauty waits upon the course of this little crystal
globe. The grace and sprightliness of its movements must strike the
commonest observer. As the sunlight falls upon its cilia, they are
'tinted with the most lovely iridescent colours;' and at night they
flash forth phosphoric light, as though the little creature were
giving a saucy challenge to the stars.

The beroe is a most active being, its habits conforming to the
organisation with which it is endowed. Such an array of paddles
prophesies of a mercurial temperam