Book

 1 2|            which method is called Doubling by the straight line, and
 2 2|           last (method) is called Doubling by the flanks.~The first
 3 2|          twenty forty: so that by doubling at your direction, you cannot
 4 2|     hundred infantry, so that the doubling by the straight line will
 5 3|     talked of the arrangement for doubling themselves. It is true,
 6 3| themselves. It is true, that when doubling, they should want to retire
 7 3|        but from the rear, so that doubling the ranks, they should come
 8 5|           that are not assaulted, doubling the ranks in each one, and
 9 6|           have only shown that in doubling the forces, nothing else
10 7|        receives and hides it)) in doubling the depth of the ditch,