IN TIME OF WAR. 2HZ

Three stone-mortars to sire from the battery E against

the ravelin P.

Three stone-mortars to fire from the battery F againstthe flank R, which covers the breach N in the bastion Q.

Eight 13 and i o inch mortars to fire from the battery Gagainst the flank R ; on a supposition that its fire is superiorto the counter battery D.

Eight royal mortars to harrass from the battery K thetroops that defend the ravelin P.

Eight mortars of different calibres, to harrass from thebattery H the troops that defend the bastion Q_; and pre-vent them from throwing up intrenehments.

According to this calculation, the artillery used in thefirst part of the attack, will be amply sufficient for the second.

27. The number of rounds for each piece is determinedby the duration of the siege. In the cafe in question, thegreatest number of days that the batteries will be open,will be nearly as follows ;

(PI. 1.) The batteries G, H, K, L, M, N O, twelve days.

The royal mortars in the second parallel, eight days.

The stone mortars at Q_in the third parallel, six days.

(PI. 2.) All the batteries constructed for the second partof the attack, eight days.

28. The following is a proporiion of stores for carryingon a regular siege, under these circumstances (24): thewhole is supposed to be supplied from one depot, and trans-ported to the scene of action, in carriages drawn by oxenalong level and well made roads. This state will also serveas a rule for ranging each article, in the class to which itproperly belongs.

0.2

State