86 On Fossil Plants from Washington Territory. 
history of the American flora, to discover through the plants 
of the tertiary the various elements of which it is composed ; 
the time will surely come when we shall be acquainted with 
the true characters of the different: floras and with the history of 
their formation.” 
“You very correctly remark that the examination of the 
tertiary flora of Oregon and Vancouver shows — the a is 
nearly related to the European flora of the same e 
our species, we find some which are —— as “particularly 
- characteristic of our costae _ er species of Cinnamomum. 
. rp 
which is broader just above its middle. What makes me doubt- 
aa ea a ee EC 
i i a a 
