SMITHSONIAN INSTITUTION 
INTERNATIONAL EXCHANGES, 
S. P. Langley, 
Secretary. 
Washington, D, C. , November 21st, 1889. 
Professor Sereno Watson, 
Botanic Garden, 
Cambridge, Mas s . 
Dear Sir: 
The packages advised by your letter of November 8th have 
been received and forwarded as far as they relate to correspondents 
abroad. 
With regard to the parcel for the California Academy of Sci- 
ences,! have to say that requests are constantly received for the 
transmission of scientific publications to persons within the 
United States under the Smithsonian frank, but it is impossible 
to comply with them. 
The Institution has been compelled to discontinue domestic 
distribution except to its correspondents in Washington. 
I have , however, made an exception in the present instance, 
amd will have the parcel addressed to the Library of the California 
Academy of Sciences mailed, post age being paid by this Institution. 
Very respectfully yours. 
Secretary . 
