SMITHSONIAN INSTITUTION 
UNITED STATES NATIONAL MUSEUM 
WASHINGTON, D. C. 
August 7, 1908. 
Dr. BUL. Robinson, 
Cambridge, Mass. 
My dear Dr. Robinson, 
I have returned from another trip to Mexico, this 
time having visited Chinuahua and vicinity. I had already been there 
but in the rainy season and it was hinted to me that I visit there in 
the dry season, which I have done. 
I have in preparation a set of these plants which I am 
lsying out with the hope that you will arrange for their purchase by 
the Gray Herbarium. There will be about 388 of them and I am offering 
them at the usual price,-10g per specimen. 
Very respactfully yours, 
Favaro Tolman 
42 Le A rk ae lc wes le Age A 
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