DEPARTMENT OF THE INTERIOR 
UNITED STATES GEOLOGICAL SURVEY 
WASHINGTON D. C.,D9C . 3, 1887 
Mr. Sereno Watson, Caini^ririge, Mass. 
Dear Sir;- 
Your card and the package came safely, Dr, 
Vasey has the package enclosed for him, I do not qnite under- 
stand about the Costa-Rica ferns, were they collected by the same 
man, John J. Cooper, who collected the ones we sent to Kew for ident 
ifieation? Only two sets were returned us from Kew, one of which 
we novir have and the other was donated to you. The ones you sent 
are on the same kind of paper and seem in every way like the 
Cooper collection. 
Very truly yours 
