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notice as the difference observable in every class with 
respect to the general character of those forms ; some 
being low, heavy, and clumsy; others lofty, light, 
and graceful. Of the former, among mammalia, we 
may instance especially the mole, low, heavy, and 
ungraceful, whom we may contrast with the light 
and active monkey, mus jaculus, or kangaroo. We 
may contrast the low and massy hippopotamus, the 
elephant and rhinoceros, the tapir and the boar, 
with the lofty giraffe and the light deer and ante- 
lope, the leopard or weasel. Thus the unwieldy 
goose, duck, penguin, dodo, may be contrasted with 
the light and graceful phaethon, anhinga, tern, swal- 
low, wagtail. Amongst amphibia, the clumsy turtle 
and toad with the light lizard and graceful serpent. 
So among fish, the ray tribe, the flounder, the ap- 
propriately named lump and diodon, with the gar, 
the mackerel, the trichiurus, the lampern. Among 
crustacea, the crab with the scolopendra: amongst 
insects, the beetle tribes with the libellule, tipule, 
&c.: among mollusca, the slug with the Gordius: 
among plants, the fungus and tuber, the toadstool 
and the truffle, with the panick and all grasses, and 
reeds, the birch, the mountain ash, &c. So regard- 
ing them all as contrasted in relative loftiness and 
length, how striking is the contrast of magnitude 
between the giraffe and camel, the dormouse and 
the minute harvest mouse, mus messorius! How 
singular in analogy the contrast of the ostrich with 
the wren and trochilus, the former eight or nine feet 
in height, the latter two inches and a half! The 
