488 Bibliographical Notice. — 
in America are enumerated in 2 pages; those in other regions in 5 
pages. At page 17 and afterwards the American species are marked 
with an accent. The lithological and natural-history characters of 
the Devonian horizons, groups, or stages in different parts of the 
world are concisely and clearly shown in pages 114-126; and the 
books and authors quoted are enumerated at pages 127-135. 
The Carsonrrerovs flora and fauna, arranged (1) separately for 
North America on one page and for Europe on the opposite, order 
by order, in one Table, and (2) in a supplemental Table, similarly, 
for other parts of America on one hand, and for previously unmen- 
tioned regions on the other, take up pages 137-411. Two sets of 
Addenda of species and genera received by the author whilst the 
foregoing Tables were at press, and arranged like them, oceupy 23 
(414-426 7) pages. 
Short summaries of the Carboniferous stratal groups (1st, in 
America; 2nd, in Europe, Asiatic Russia, Bear Island and Spitz- 
bergen, the Punjaub, and Queensland) are given in 4 pages; and 
the authors quoted, in pp. 431-440. 
A most valuable Table, giving an Analytical Conspectus of the 
Devonico-Carboniferous Flora and Fauna, faces page 441; and this 
is supplemented at page 444 with the results of the Devonian Ad- 
dendum and of the Carboniferous Addenda; so that at p. 445 we 
find the numerical result of this conscientious and most laborious 
examination of the whole literature of this extensive subject. Of 
the whole of the Devonian and Carboniferous species known up to 
the date of publication, in ‘ America” and “ Europe” (that is, Hurope 
and the other regions associated with it in the other lists), we see :— 










Devonian Species. Carboniferous Species. 
Common to || Common to 
America and | Total known. || America and Doubtful. Total. known. 
Europe, &e. Kurope, &e. 
86 4830 239 feos 9171 




The number of species common to these two great distinct, though 
allied, systems is inadvertently omitted, although the subject is 
entered in the Table of Contents at p. 447. 
We have, however, been enabled to draw certain conclusions, 
which, though imperfect, are not without their use; and they will 
be followed up, we believe, by our indefatigable author in a forth- 
coming commentary on the percentage of recurrent species and 
other matters of interest. The total number of both Devonian and 
Carboniferous species is 14,000, divisible into about 1140 genera. 
Of these latter there are :— 
In America. In Europe, &e. 
About 12 per cent. 17 per cent. in the Devonian only. 
sy od goings 16 “s in the Devonian and Carboniferous. 
5 2 eee 27 ss in the Carboniferous only, 
