Bibliographical Notice. 187 
and ims oe in great quantities, after their long burial, to the 
hands of those who know more of zoology than our predecessors 
knew. The eir knowledge, of course, is as yet imperfect, and ever 
will be ; _but its diia aids much in the discrimination of differences 
In the book simile’ sities Mr. Seeley first alludes to the col- 
lection of specimens he has to describe, the condition of the bones, 
and the place of their exhumation in the Greensand. Prof. Owen’s 
the author’s own works and views are next mentioned. A sum- 
mary (chiefly after Von Meyer) of the opinions of palzontologists on 
the organization of Pterodactyles follows (a bibliographic list is ap- 
pended); and Mr. eni s conclusions as to their organization and 
classification are given at pp. 24—27 and pp.94-112. The body of 
the work comprises description of the specimens, with explanation 
of the Pug affinities shown by the several bones. At pp.112— 
128, twenty-five species of the new genus Ornithocheirus are de- 
from other genera. They are founded on the premaxillary and other 
bones of the snout, which vary in form, but are associated with teeth 
prolonged anteriorly to the muzzle, and with a longitudinalridge on 
the palate. 
This Catalogue isa welcome instalment of the grand series that the 
of this year. It clearly indicates the leading features and special 
characters of the Pieridictylisa remains preserved in the Wood- 
f u 
Mr. See 
general plan of the most vital and important of the soft structures 
was similar to that of living birds," and ** that with such a common 
plan i is associated a eda d of details sufficient to te that 
hese animals are not birds, but constitute a new group of haer om 
of equal value with the birds—the subclass Ornithosauria” (p. 2 
ssimilarities of structure depu the Sauropsids being regarded 
as of less isis than the modifieations that characterize - 
Mammals; and Owen sees cx ties between the Mammals 
Reptiles than Huxley appears to have note 
