The old text-books must be put to one side. The methods of organization and the methods of fighting have alike changed. It is only those who have had responsibilities as leaders in the present war whose instructions can be accepted as authoritative. ─────────────────────────────────────────────────────────────────────── G. P. Putnam’s Sons New York London ------------------------------------------------------------------------ Transcriber’s note: 1. Silently corrected typographical errors and variations in spelling. 2. Retained anachronistic, non-standard, and uncertain spellings as printed.