(Sra\> Iberbarium 
Ibarvarb *mniverstt\> 
B. L. ROBINSON. Curator, 
Asa Gray Prof. Syst. Bot. 
M. L. FERNALD, 
Fisher Prof. Nat. Hist. (Bot.) 
J. F. MACBRIDE, Assistant 
MARY A. DAY, Librarian 
CAMBRIDGE, MASSACHUSETTS, U. S. A. 
March 4, 1916, 
Mr. C. A. 7/eatherby, 
East Hartford, Conn. 
Dear Weatherby: 
Kindly pardon my delay in starting: the Hacoun specimens of Puccin - 
ellia to yon. One thing after another has kept me husy with class work 
and routine, and I am just getting the package off to you. Unfortunate¬ 
ly the ffreat hulk of the Macoun material was returned to Ottawa while 
the paper was in press, but this collection contains so much material 
that I think it is fairly representative for western Canada. Since the 
Hacoun material will in some way alter your paper, I am returning the 
manuscript that you may make such insertions as you wish. Then I think 
it would be a most acceptable short article for Rhodora. There seems 
to he no good journal covering western America, and Rhodora has no pre¬ 
judice against being read west of Hew England. Hie Gray Herbarium 
material of P. airoides comes fr< ebraska, forth Dakota, South Dakota, 
Saskatchewan, Alberta, Mackenzie, Wyoming, Colorado, Utah, Montana, 
and Hew Mexico. 
Should you have occasion to run the other western species, which are 
probably new, into this paper it would add to its value and incidentally 
