
          March 31, 1855


 Dear Dr.


 I don't know Dr. Henry's
 address : but if you enclose to 
 the Surgeon General's office they
 will forward.


 I think the plan of conferring 
 the Natural History
 expedition till the printing of the Geographical
 portion is much the best.


 From conversation generally with
 Whipple, I feel assured he will
 gladly assent to it.  Better publish
 the diagnoses as you 
 propose.  


 I hope to have matter
 myself for at least one large
 quarto volume, perhaps
 two, on all the collections. 


 Yours truly
 S.F. [Spencer Fullerton] Baird


 Dr. Jno. Torrey
 NY  Assay Office
 NY
        