SMITHSONIAN INSTITUTION 
S. P. Langley, 
Secretary. 
INTERNATIONAL EXCHANGES, 
¥ashington,D. C. ,May 6th, 1890. 
Professor Sereno Watson, 
Herbarirun of Harvard University, 
Cambridge, Mass. 
Dear Sir; 
In reply to your inquiry of the 1st instant, relative to 
certain packages forwarded by you in November last to Professor 
Caruel at Florence, Italy , I have the honor to say that these parcels 
formed part of one of our regular transmissions to Italy which 
left here on December 27, 1889, and was acknowledged by the Italian 
Exchange Commission at Rome on April 15,1890. 
The boxes containing the stones and plates for the "forest 
trees of the United States" have been delivered and a formal 
acknowledgment will be sent to you by the registrar of the Smith 
Very respectfully yours. 
Secretary. 
sonian Institution. 
