suit of Lee, 367; decides on attacking Lee at Williamsport, 369; Lee's escape at Williamsport considered, 369; advance into Virginia, 374; drives Lee across the Rappahannock and Rapidan, 375 position on the Rapidan line, 376; falls back behind the Rappahannock, his left being turned, 377; advances towards the Rappahannock in pursuit of Lee, 385; crossed the Rappahannock—the Confederate position, 387; back between the Rappahannock and Rapidan, 388; the Mine Run move, 390; plan of operations in Mina Run move, 391; pedantic orders of Halleck after Mine Run, 398; army in winter-quarters, 398; his strength on commencement of overland campaign, 413.
Mechanicsville, McClellan's object in carrying, 122.
Meigs, General, on direct advance towards Richmond, 84.
Merrimac, the, to be neutralized, 91; the, destroyed by Confederate Commodore Tatnall, 120.
Middle Military Division, creation of the, General Sheridan commanding, 555.
Miles, General, at Harper's Ferry, 199.