3 
te _ Miscellanies. 217 
produced by losing four volumes of hydrogen and gaining two vol- 
umes of oxygen, conformably to the theory of types and the law of 
_ substitutions.— Ibid. 
& 
“22. Iodine in Coal.—M. Bussy has recently procured iodine in the 
form of hydriodate of ammonia, in different specimens of coal from 
Commentry, (Allier. )—Jbid. 
23. Siz new species of Kangaroo.—Mr. Gould, who has just re- 
turned from Australia, after an absence of two years and a half spent 
in the investigation of the habits and economy of the animals of that 
continent, brought before the notice of the Zoological Society six 
new species of kangaroo, which he had discovered principally in the 
interior of that country. The first to which he drew attention was a 
large species, but inferior in size to the Macropus major, discovered 
on the summits of the n in ranges. Mr. Gould observed that 
id.very dangerous to approach. The 
general color of the ma ‘slightly intermixed with brown 
on the back, and the’ fee “the female is much paler than 
the male: the fur is som y and shaggy. The unusual 
strength and size of the limbs ed the specific name robusius, 
which Mr. Gould gave to this animal. The second species of kan- 
garoo has a remarkably elegant appearance; being of a slender, deli- 
cate form, and adorned with two white stripes, which, commencing at 
the occiput, run down the back of the neck on to the shoulders, where 
they are recurved ; the general color of the upper part is gray; of the 
neck, pale fawn color; and of the under parts, white. Mr. Gould 
pro to designate this species by the name frenatus. The third 
species is about the same size as the last, being about two feet in 
height, and of a yellowish fawn color, becoming whitish about the 
; its tail is very long; but the most remarkable character of this 
animal consists in its having a nail at the tip of the tail; this nail is 
hidden by the tuft of hair with which the end of the tail is furnished, 
and greatly resembles a finger nail, both in texture and form, but is of 
@ black color. The name unguifer was proposed for this species. 
the M. frenatus Mr. Gould had found a horny nail at the tip of the 
tail, but less developed than the last mentioned species. To the fourth 
Species Mr. Gould gave the name /unatus ; this name being suggested 
by two crescent-shaped white marks observable on the shoulders of 
the animal, which is about the size of a rabbit, of a gray color, and has 
a short head and large ears. The fifth species, Mr. Gould observed, 
is nearly allied to the Macropus penecillatus, but differs, it being ra- 
ther smaller, in having the tail less bushy, the under parts of the body 
Vol. xx, No, 1—Oct.-Dec. 1840. 28 
