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POPULAR SCIENCE REVIEW. 
sudden improvements of his enemy. But when both armies 
come to improving their arms, and, as a necessary consequence, 
complicating highly their organization for supply and equip- 
ment, will they not, as with the sword, tacitly revert, after 
experience, to something simpler ? The change being, perhaps, 
hastened, as all history demonstrates, when wars become highly 
complex, by some man with genius grasping the just medium 
to which complexity can be carried with efficiency, and, disre- 
garding the long sword of his antagonist, closing with him 
victoriously. Wars, at all events, have not become more bloody 
since fire-arms and their improvements have come into vogue. 
No. VI I. 
THE ZOOLOGY OF THE INTERNATIONAL 
EXHIBITION. 
BY CUTHBERT COLLINGWOOD, M.B., P.L.S., &c. 
QCATTERED up and down the vast building which has 
Lo been the centre of attraction to so many thousands during- 
the past summer, the lover of Natural History found ample 
material to attract his attention, and to encourage him, if he 
were fortunate to have at his command sufficient time to make 
a systematic examination of the contents, to devote a day to 
its zoological and botanical treasures. He would soon perceive, 
that although there were numberless nooks of the Exhibition 
which yielded something of interest in this department, never- 
theless they were chiefly concentrated about the colonial courts, 
which in some instances were furnished with scarcely anjdhing 
else but the animal and vegetable productions of the colony, 
accompanied by specimens of the raw material derivable from 
them. This fact at once affords an indication of the manner 
in which a brief sketch of this department of the Exhibition 
should be treated ; and as the animals and vegetables were thus 
to a great extent geographically arranged, so also they should 
be described. 
Let us first visit our most distant colonies, which, situated at 
the antipodes of this country, yield, as might be expected, some 
of the most remarkable forms of animal life. Victoria, which 
only emerged into an individual existence in 1851, and is now a 
flourishing- colony of forty-seven municipalities, sent specimens 
of some of its curious marsupial animals. These creatures, 
represented by the Kangaroo and Wombat, are characterized 
