S. P. Langley, 
Secretary. 
Professor S. Watson, 
Cambridge , Mass . 
Dear Sir^ 
I am plaased to learn from your letter of the 15th inst. 
that the plates of Doctor Gray*s proposed work on "Forest trees" 
have been fotmd in the attic of your Herbarium building. These 
plates cost the Institution over Three thousand dollars, and some 
use should be made of them. Could you furnish us with a descriptive, 
list to be printed to accompany the plates if it is decided to 
distribute them? 
As it is my wish to have all the property of the Insti- 
tution represented by stereotypes, plates, lithographic stones, etc., 
stored here in Washington,! shall be obliged if you will have all 
the material referred to in your letter carefully boxed and shipped 
to the Institution by freight line, as soon as convenient. 
Please present my respects to Mr s . Gr E^y , and believe me 
Yours truly. 
Secretary. 
