Letters complimentary and critical of L.P. D'Orleans, Compte de Paris, of Brigadier General Andrew Atkinson Humphreys, Chief of Engineers, U.S.A., Major-Gen. U.S.V., Chief of Staff and Commander of the Combined 2d-3d Corps of the Army of the Potomac, &c., of Colonel John P. Nicholson, and of others between the years 1877-1897