694 TRAVEL IN EUROPE AND AMERICA. [1880, 
TO A. DE CANDOLLE. 
CAMBRIDGE, January 1, 1880. 
My DEAR Dr CAnDOLLE, — Though I have entered 
on the seventieth year of my age, I hold out well, and 
when other cares do not interrupt, I go on with the 
“‘ Composite,” yet all too slowly. Before I print them 
I shall hope to have another inspection of some of the 
species of the “ Prodromus” in your herbarium ; per- 
haps before this year 1880 is out, yet it is rather doubt- 
ful. I get on slowly, and then Mr. Watson, who will 
have the “ Flora of California” off his hands as soon 
as he can get the manuscript of the “ Graminez ” out 
of Professor Thurber’s hands, must have a vacation 
ramble, probably to Oregon. If he leaves here in 
the spring, I must wait his return here in the autumn, 
or at most cannot leave home until after midsummer ; 
too late to render myself at Geneva, I suppose. 
Much of my time of the last few months has been 
occupied with the details of building a small addition 
to our herbarium building to contain the botanical 
library. It is just finished, and the books will now 
be moved into it in a few days... . 
My health is excellent. Let us hope the same for 
you, and offer my best wishes for the year 1880. 
Dr. Gray delivered in the winter of 1880 two lec- 
tures to the theological school of Yale College, on 
Natural Science and Religion. 
They were long and carefully thought out, and he 
had great pleasure in speaking to an audience who 
followed him so closely, and evidently with such atten- 
tive sympathy. 
He also enjoyed very much reading them, before 
delivery, to his friend Dr. O. W. Holmes, in Boston. 
