In battle also, where there is not, of course, time to prepare the ground as above stated, but where it is tolerably level, he may, in addition to the apparatus he possesses, add to his fire by discharging, from the intervals of his frames or cars, Rockets merely laid on the ground in the direction required: and, if an enemy be advancing upon him, there is, in fact, no limit to the volley he may be prepared thus to give, when at a proper distance, but the quantity of ammunition he possesses, the extension of his own ground, and the importance of the object to be fired at. Under these limits, he may chuse his volley from 50 to 500--a fire which, if judiciously laid in, must nearly annihilate his enemy: for this purpose trains are provided. This practice also requires the exposure of only one or two men, who are to fire the volley, as the remainder, with the ammunition, may be under cover. And here it should be remarked, that the length of ranges, and the height of the curve of the recochét, in this mode of firing, depend on the length of the stick--the stick of the full length giving the longest range, but rising the highest from the ground; the reduced stick giving a shorter range, but keeping closer to the ground. From this application, therefore, where practicable, by carrying a certain number of the 12-pounder pouches in the ammunition waggon, an officer, even with a dismounted brigade, may always manœuvre and detach parties to get upon the flanks of any approaching or fixed column, square, or battalion, while he himself remains with the heavier ammunition and cars in front. This mode of firing from the ground of course applies only for moderate distances; the limits of which, with the smaller natures of Rockets, may be considered from 800 to 1,000 yards, and for the larger from 1,000 to 1,200; where therefore greater ranges are required, the apparatus must be resorted to. And here it is proper to remark, that in the use of the Rocket, at least in the present state of the system, no certain increase of range can be depended upon by increasing the elevations from the ground-ranges up to 15°, for the smaller Rockets; and 20 to 25° for the larger; for in the intermediate angles, the Rocket is apt to drop in going off, and graze near the frame; but at the above angles it will always proceed in a single curve to very greatly increased ranges from 1,500 to 2,000 yards. In bombardment, as well as in the field, the quantity of instantaneous fire is equally important, and the greater number of Rockets that can be thrown, not only increase the number of fires, but, by distracting the enemy’s attention, prevent their extinction. To this end, therefore, an officer should always employ as many bombarding frames as possible; and here again he will find, that in bombardment, as well as in the field, the weapon affords him the means of extending his fire beyond the compass of his apparatus.