AT. 56.] TO GEORGE ENGELMANN. 551 
The seeds I put loose in this sheet are Cinchona 
officinalis. Get the tree introduced into your cooler 
region, that is, the Caffetals of east Cuba, and the 
tree will be commercially important in time, and you 
will be a benefactor of your species. Enough for 
once. Ever your old friend, A. Gray. 
TO GEORGE ENGELMANN. 
November 20, 1866. 
Dear Encermann,— Yes, I have a heap of un- 
answered letters from you. But I have not one mo- 
ment of time. 
I have copy of “* Manual” in printer’s hands up to 
Composit, and am only now two days ahead; have 
been only two hours ahead day after day!! It is 
awful! So much other work too! ... 
If I could get five hundred to one thousand more a 
year I would at once resign professorship and sal- 
ary... . 
I am well, never more hearty; but worked like a 
coach-horse. I have got my fund raised for the Gar- 
den: small, but we have now clear $2,500 or $2,600 a 
year for Garden. 
February 27, 1867. 
How much I am indebted to you! No one else 
who undertakes to help me ever makes out much, at 
least to save me time and trouble. 
I have not time to write details “if the little I know 
about the National Academy. But I have seen 
enough to make it clear that I should not be taking . 
any more responsibility about it. So last month I 
sent my resignation. They have put me on the list 
of Honorary Members. The American Academy is 
