32. Why are more rounds of canister fired in a minute than of solid shot or spherical case?

Because the latter are fired at greater distances than canister, and require the piece to be carefully aimed, thus requiring more time.

33. What is the smallest number of guns that may with safety be employed in the face of an enemy?

Never less than two, in order to secure a continuous fire and mutual support.

34. Is the practice of employing field batteries against those of the enemy recommended?

Only under peculiar circumstances; as for instance, when his troops are well covered and his guns exposed, or their fire very destructive.

Their fire should be directed principally against columns of attack, and masses, or upon positions which are intended to be carried.

35. In what time could a battery come into action in the field?

It could come into action and fire one round in 25 seconds, timing from the order “action front,” to the discharge of one piece.

36. Suppose cavalry to be advancing to attack infantry, and first observed at the distance of a mile, passing over the first half mile at a trot; the next quarter of a mile at the manœuvring gallop; and the remaining distance at an increased gallop, terminating with the charge; occupying altogether about six minutes: during the last 1500 yards of their advance how many rounds per piece might a battery fire in that time?