362 REVIEWS. 
limbs and its stiff armor and its habits of burrowing in the mud, T 
corals do not usually live, it could when “alarmed, shoot with a 
Stroke of his tail under cover of some coral crag." 
imagine this acrobatic feat performed by alobster. And Bis the way the 
author is at fault in allying the trilobite to the Idotean — 
Glyptonotus antarcticus, figured on page 322, when its ^ sest ally 
orse Shoe Crab, Limulus. Our author adopts the nebulous denies 
How can he logically discard a theory of a gradual development of vege- 
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$7 
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£e 
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o e Cuverian types, and must form a fifth “corner stone on diis 
Nature has built the superstructure of "ty animal creation" (p. 3 We 
would question whether there is not a successional relation d the 
four subkingdoms of animals, as much as in the classes of the vetebrates. 
T 
anatomist, and shown to have been composed of the bones of mastodons 
with a sprinkling of Zeuglodon bones 
HAND-BOOK OF ZooroaYv.*—In this little manual the author id claims 
to give a skeleton of the subject, with illustrations taken from species 
which the student can collect for himself within the limits n Hou 
m 
ght 
ordinarily to be used. The and second chapters, on Physiological 
Zoology and Zoological pieces contain much F sense, and de- 
* Handbook of Zoology; nd fossil. By J 
Dawson, LL. D., F. R.S., etc. Part I. Invertebrata, with 215 Arni Montreal. ue 
Price $1 50.. 
