In evening Comdr. Dahlgren at White House reviews with Lincoln progress of Army of Potomac. Sec. Stanton drops in, makes few slighting remarks, tells President there is no change below. Lincoln refers to his telegram sent Gen. McClellan at 8 P.M.: "I think you better break the enemies' line from York-town to Warwick River, at once." Extracts from Dahlgren Diary, John G. Nicolay Papers, Library of Congress, Washington, DC; Abraham Lincoln to George B. McClellan, 6 April 1862, CW, 5:182.