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REVIEWS. 641 
found at p. 641 vol. IV of this journal) ; on the vertebrate fossils of’ 
the Tertiary formations of the West, by Prof. J. Leidy; on the 
fossil plants of the Cretaceous and Tertiary formations of Kan- 
sas and Nebraska, by L. Lesquereux; on the fossil reptiles and 
fishes of the Cretaceous rocks of Kansas, the fossil fishes of the 
Green River group and the recent reptiles and fishes obtained by 
the naturalists of the Expedition, by Prof. E. D. Cope; and final- 
ly, a report on the Industrial Resources of Western Kansas and 
Eastern Colorado, by R. S. Elliott. 
' These reports contain matter of much general interest by the 
distinguished scientists whom Prof. Hayden has summoned to his 
aid, and give the volume a lasting value. From Mr. Lesquereux’s 
report we select the following remarks on the discordance in the 
characters of the European and American flora of the Tertiary and 
Cretaceous epochs :— 
cate for our country a precedence in time in the ioe of 
botanical types. Large trunks of coniferous wood are already 
found in our Devonian measures, while analogous species are re- 
corded as yet only in the Carboniferous measures of England 
Though the analogy of vegetation between the flora of the coal 
measures of America and Europe is evidently established by a 
number of identical genera and species, we have nevertheless some 
coal measures as far down as the first coal above the millstone grit. 
Even peculiar ferns of our upper coal strata have a typical anal- 
e of numerous Cycadex, touches the Jurassic of Europe. But 
it i is especially from our flora of the lower Cretnncids that we have 
a vegetable exposition peculiarly at variance with that of Europe 
where the plants have been found, could not be admitted by pale- 
ontologists until after irrefutable proofs of it had been obtained.” 
Prof. Cope’s report gives apa of the reptilian life which 
formerly flourished over this region : 
“ The species of reptiles which have been found in the Cretaceous 
strata west of the Mississippi River up to the present time -num- 
ber fourteen. Five of these pertain to the Sauropterygia, one to 
the Dinosauria, and seven to the Pythonomorpha. In the present 
report attention is confined to the species saddiceirered near the line 
