26 THE VIVARIUM. 
kept there by a button. Hanging over the opening a (inside) 
mace to receive the trough is a small zinc door, which falls down 
and closes the opening when the trough is removed to be cleaned 
and reutled, but is raised horizontally when the vessel is returned 
to its former position. Such an arrangement as this will tend to 
prevent the escape of the inmates of the case. The interior should 
be coloured with distemper of some suitable tint, and the outside 
painted with Aspinall or a similar preparation. This case is 
intended to face the sun. 
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Fic. 17.—SMALL VIVARIUM FOR GECKOS, SKINKS, AND THE LIKE. 
Of course, the various Vivaria which have been described in 
this chapter are capable of many modifications and improvements. 
In making such articles it is always wise and kind to provide for 
the especial needs of the animals for which a particular case is 
intented, e.g., a case for Lizards should be so arranged that its 
inmates can have access to the rays of the sun, and to some cover- 
ing under which they can retire ; that for Batrachians should be 
supplied with plenty of clean water, shade, and some sun ;_ that 
for Snakes, gravel, a tree, and bathing water; that for Skinks, 
sand, a hiding-place, and as much sun as possible. On no 
