492 Bibliographical Notice. 
and from these and the overlying beds a still more interesting 
collection of the remains of vertebrate animals....As a whole, the 
flora which the plants represent is strikingly like that of the Lower 
Miocene of Europe, which has heen so amply illustrated in the 
PRE : : 
Du 
however, that there is here an entire absence of the Indo-Australian 
plants which give character to the flora of the Eocene and, to a cer- 
tain degree, to that of the Miocene of Europe. ,Ün the contrary, we 
have a grouping of plants which is closely copied by the flora of our 
Southern States at the present da wW 
Dr. Hayden discovered are the only plants in the collection which 
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of Bellingham Bay, species of Cinnamomum have been found, as 
also in the Eocene deposits of the Mississippi valley, and the Eocene 
lignites of Brandon, Vermont— fossils which are indicative of a 
interior of the continent—and that during the Eocene period the 
climate of the eastern half of the continent was warmer than now, 
corresponding in some degree to the tropical climate which prevailed 
in Europe during the same epoch. 
“In the collection of fossil plants recently described by Professor 
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.. 
us Macquarrii, and Rhamnus Eridani, which are characteristic of 
continent, showing that our plants have experienced far less changes 
than our animals. This fauna includes Elephas, Mastodon, Rhino- 
