red chameleon, a blue chameleon, a green chameleon, and a yellow
chameleon. The fact of the case is very far-from this notion.
Chameleons are found chiefly in Africa and India, but also in some of
the tropical islands. In their habits they are sluggards, lounging
generally about trees, and distending their long tongues covered with
a glutinous secretion, to secure passing insects, upon which they
subsist. They have eyes of wonderful power, and can look backwards and
forwards at the same moment; but as regards their colour, it is well
to assure the visitor, that their usual tint when resting in the shade
is a blue-grey, which sometimes pales to a lighter grey, turns green,
assumes a brown-grey tint, or darkens to a decided brown. These are
the sober observations of observant naturalists on the subject.

The class of reptiles to which the visitor should next direct his
attention are those classed by Cuvier and others under the head of
Ophidia, or

SERPENTS.

The particulars in which, the serpent differs from the lizard are,
that the former have no feet, cast their bright coats annually (like
our metropolitan postmen), and swallow their food without masticating
it. They occupy seven cases. The upper part of the first case contains
many of the most poisonous serpents. Among these are the well-known
and formidable Rattlesnakes of America, with specimens of their
rattles lying near them, which, as the visitor-will see, are a
succession of osseous joints. Here too are the terrible cobra di
capello, and other poisonous serpents of India; the South American fer
de lance; the vipers of Europe; the North African crested viper; and
the Cape of Good Hope and Western African puff adder; the Guinea