36 
room ix, lection of Crustaceous animals, Spiders, and 
Insects *. 
The upright Cases contain Amphibia, and 
Invertebrated animals, in spirits. In Cases 
No. 1 and 2, are the various species of Frogs 
( Rana ), some of a large size. Amongst them 
is the Jacky (Rana jparadoxa)^ the tadpole, or 
larva of which, is larger than the perfect animal, 
losing at its metamorphosis its enormous tail 
and external skin;—whence the older naturalists 
fancied the order of nature was reversed in this 
animal, and that the frog became a tadpole, or, 
as they called it, a fish,—an error long since 
exploded. The Tree Frogs (Hyla ), have the 
ends of their toes dilated into a roundish disk, 
by which they climb. The Horned Frogs have 
the eyebrows extended into horns. 
In Case 3 are Toads ( Bufo ), some of them 
exceedingly large. The Bombinatores, or Ear¬ 
less Toads, differ from the others, merely by 
having the tympanum concealed under the skin. 
Some, as the Rhinellse, have their nose produced 
* The three last are exhibited merely as an outline of the arrange¬ 
ment of those subjects. The principal collections of Crustacea, Spi¬ 
ders, and Insects, are preserved in proper cabinets in a separate 
room, and may be seen, by persons who wish to consult them for the 
purposes of study, by application to the officer to whom their care is 
entrusted, every Tuesday and Thursday. In order to prevent disap¬ 
pointment, it is requested that individuals or parties wishing to see 
those collections, will apply two days previous to their intended visit, 
as only a certain number of persons can be admitted at the same time. 
to 
