580 LETTERS TO DARWIN AND OTHERS. [1865, 
And now, I turn to your letter of September 29, 
and ask your pardon for having so long neglected it. 
Your letters, your reflections upon social and political, 
as well as upon scientific questions, are always very 
interesting and instructive to me. I regret that I can 
render so little return in kind. 
s to our national troubles, ie — brightens 
that we shall end the rebellion and slavery holo 
long. God grant it. 
Believe me to be, as ever, my dear De Candolle, 
very faithfully yours, 
TO GEORGE ENGELMANN. 
February 14, 1865. 
. Wright is here, distributing and finishing up 
Sie North Pacific Expedition Collection; . . . will re- 
turn to Cuba in a month or two, to take a year or two 
more there, revisit some old parts and explore some 
new; then I urge Hayti, but Wright seems rather 
loth. 
Rothrock — from northwestern Pennsylvania — is 
a bright lively pupil of mine for last three or four 
years, when not serving his country in the army, 
where he has done good service as private in infantry, 
and as captain in Pennsylvania cavalry, ete. He had 
to leave his thesis partly unfinished. But the real 
credit of all belongs to him. His father is M. D., and 
he is now studying medicine, attending lockiess at 
Philadelphia. But botany is in him, and will prob- 
ably come out. . 
There, I aleve ie: is about all. J. A. Lowell has 
made a nice present of costly botanical books, of which 
more anon. 
i 
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