...letter will have an interest for all of our readers; but for those who knew the gallant Prussian, and appreciated his warm sympathy for our struggling people, it will have a peculiar interest.] Stuttgart , 21st Nov., 1877. Rev. J. Wm. Jones, Sec'y S. H. Soc'y: Dear sir: You will, perhaps, be surprised that a foreigner should desire to mingle in the discussion of the battle of Gettysburg; but I hav...