Otyp 55>w fork lotomral (trnrbnt 
ffironx Park 
Nm fork, N. f . 
March 27, 1951 
Dr. B. L. Robinson, 
Gray Herbarium, 
Cambridge, Mass. 
Dear Dr. Robinson: — 
In accordance with your request, I am sending under separate 
cover the set of 107 photographs of A egiphila type collections, or, where these are 
lacking, of especially representative sheets, and am enclosing the bill for the 
same herewith. I trust that the photographs will prove satisfactory. Some are not 
quite equal to others in quality, but that, I suppose, is to be expected, since I 
have taken almost 600 photographs thus far, in all sorts of weather and under all 
sorts of difficulties, and the films have been developed by several different persons 
Doubtless some slight differences in technique are responsible for some of the 
differences in quality to be noticed in the prints. However, I think that every one 
of the pictures which I am sending you is very typical of the species or variety 
which it represents, and, taken in conjunction with the diagnoses and the key to 
species which will appear in my forthcoming monograph, oughfto prove a big help to 
your a-aff in identifying un&nown specimens of this genus. There are about a dozen 
more species in the genus of which I have not yet made photographs. When these are 
avail able I shall let you know. Perhaps you would care to have them also, so as to 
make your collection complete. 
.... Enclosed you will find a list of phe photographs, giving collecto 
collection number, locality of collection, and the herbarium in which the particular 
sheet which was photographed is deposited. The numbers correspond with the ‘numbers 
on the reverse side of each photograph. 
permit me to remain, 
Thanking you again for all your continued kindness to me, please 
Very respectfully yours, 
