
          Cambridge 11th Aug. 1855.


 My Dear Doctor


 Yours of yesterday is 
 just received, with the 
 blank bill. 


 Sprague has filled it 
 out anew, and I to-day 
 mail it as desired to Beckwith, 
 under Cover to Secy [Secretary]
 of War. 


 The proof of Beckwith 
 Report, which you informed 
 me you had mailed to me 
 3 or 4 days ago, has not come! 


 Enclosed is Sprague's 
 receipt for the drawing 
 of Ammobroma. Thurber can 
 make Gray pay it


 Ever Yours
 A. Gray
        