UNIVERSITY OF ARIZONA 
TUCSON, ARIZONA 
December 39, 1913. 
DEPARTMENT OF BIOLOGY 
J. J. THORNBER 
J. G. BROWN 
Mr. Walter Dean, 
29 Brewster Street, 
Cambridge, Mass. 
Dear Sir:- 
At this late minute I am writing you briefly in an endeavor 
to answer one or more of your questions. I intended to answer your 
letter immediately, but not having the information at hand, I delayed 
until I might the information from a friend, but have never haard from 
him, so have to give jtp on this goore. 
On account of the ru3h of work, I have done little of late on the 
flora, but I expect to take up the work again, and will keep at it 
most of the time, at least during the spring and summer. I got consid¬ 
erable completed during the past summer. 
I regret that Praxinus anomala does not grow in this locality, and 
hence cannot give much information. The trees as 1 saw them growing in 
the Grand °anyon tended to sucker some. I think it is general with them. 
Tith reference to the occurrence of the compound leaves, I cannot say. 
At least, I have 3een them growing on young vigorous shoots. 
I am going to suggest that you i|ave your friend write to Mr. Mar- 
cus Jones, Salt L ake city, Utah, who knows something about the ash of 
wliicn you speak. He may be able to supply you with the seeds too. 
Mrs. Thornber, wishes very much to be remembered to you, and ioins 
me m wishing to be remembered to Mrs. Dean. I am, 
Very truly yours, 
