1To George Washington from John Sinclair, 6 June 1798 (Washington Papers)
Private Sir Whitehall [London] 6th June 1798 Since I had the honour of writing you last, a change...
2To George Washington from John Sinclair, 24 February 1798 (Washington Papers)
I have the honour to inform you, that at the last Meeting of the Board of Agriculture, it was...
3To George Washington from John Sinclair, 6 June 1798 (Washington Papers)
I request your acceptance, of the History of the origin and progress of the Statistical account...