Medium Ranges with Land Service Iron Mortars,
at 10 Degrees Elevation.—Powder in Cartridges.

Medium Ranges with the above Mortars,
at 15 Degrees.

N avy—

Number and Nature of Ordnance for each
of the Ships in his Majesty’s Navy.

Dimensions of Ships, Number of Men,
and Draught of Water.

O rdnance—The value of all brass ordnance is at £84: 17s. per ton, for the metal; that is, the weight of the gun, and 12lbs. per hundred weight for waste: to which is added for casting, on the total weight of metal used, £64 per ton for light pieces; £54 for medium; and £44 for heavy.

Iron ordnance costs £20 per ton. See also the words Guns, Mortars, Howitzers, &c.

For the proof of all kinds of ordnance, see the word Proof.

P ace—The common pace is of no determined length; though made use of as a measure by most military writers.

In Germany, and amongst most of the northern powers, the pace is considered equal to ²/₁₀ of a Rhinland rood.

In France the pace is commonly reckoned at 2½ feet.

In England it is usually reckoned at 2½ feet.

The geometrical pace is equal to 5 French royal feet; 60,000 of which make a degree of the equator. This makes the geometrical pace equal 6.102 English feet, and 5.6719 Rhinland feet.

For the military pace, see Marching.

  PARALLELS—or places of arms at a siege. See the words Trenches and Sap.

PAY.—Table of the Full Pay of the Officers, Noncommissioned Officers, and Privates in the Army.

PARK OF ARTILLERY—should always be placed, if possible, within a short distance of water-carriage, and have the most ready communication with every part of the line of the army. Its form must depend on its situation. Ten feet are usually allowed in front for one carriage and its interval, and near 50 feet from the hind wheels of the front row to the fore wheels of the second; this interval should allow sufficient room for putting the horses to the carriages, and for a free passage along the line. In parks not on immediate service, it is customary to arrange the guns with their muzzles to the front; but where the guns are likely to be wanted at a short notice, appearances must not be studied, and the gun carriages must be parked with their shafts to the front, ready to receive horses to them. A quarter-guard is placed in front of the park, and the noncommissioned officers and gunners’ tents on the flanks, at about 20 paces distance and 40 paces to the rear the subaltern officers; at 10 more to the rear the captains, and 10 more the commanding officer. The mess tent is 15 in the rear of the officers. At a convenient distance in the rear of the whole, are the horses, picketed in one or more lines, with the drivers on their flanks. The horses are sometimes picketed in lines perpendicular to the front, and on the flanks of the carriages, between the men and the carriages. See the word Camp, and Artillery in the Field.

PENDULUM—Pendulums for military purposes are best made with a musquet ball, and a piece of silk, or other small line. Their length must be measured from the centre of the ball to the end of the loop on which they are to swing. In a cylinder, or other uniform prism or rod, the centre of oscillation, (from whence they must be measured,) is at the distance of ⅓ from the bottom, or ⅔ below the centre of motion.

Pendulum’s length in latitude of London, to swing

Length of Pendulums to vibrate 2 Seconds
at every Fifth Degree of Latitude.

Rule.—To find the Length of a Pendulum to make any Number of Vibrations, and vice versa.

Call the pendulum, making 60 vibrations the standard length; then say, as the square of the given number of vibrations is to the square of 60; so is the length of the standard to the length sought. If the length of the pendulum be given, and the number of vibrations it makes in a minute be required; say, as the given length is to the standard length, so is the square of 60, its vibrations in a minute, to the square of the number required. The square root of which will be the number of vibrations made in a minute.

PETARDS—are of four different sizes:—First, contain 12 lbs. 13 oz.—Second, 10 lbs. 11 oz.—Third, 1 lb. 10.—Fourth, one lb.

PLATFORMS.—The common platforms for gun batteries require the following materials for each:—5 sleepers or joists, 6 inches square, 14 feet long.—1 hunter, 8 or 10 inches square, 8 feet long, 14 planks, 1 foot wide, 11 feet long, 2½ inches thick.—20 pickets.

The usual slope of platforms for guns is one inch to every yard.

The platforms for mortar batteries are made with 3 sleepers 8 inches square, and covered with about 11 timbers of the same thickness. They are laid perfectly horizontal, about 15 feet asunder, and 12 feet from the epaulment. This is the distance commonly practised for firing only at 45 degrees elevation; but if the platforms be placed at the undermentioned distances from the epaulment, the mortars may be fired at the angles corresponding.

See also the word Battery.

POINT BLANK.—For the point blank ranges of different pieces of ordnance, see the different natures.

The French point blank or but en blanc, is what the English artillery call the line of metal elevation; in most guns between one and two degrees.

PONTOONS.—

Dimensions of Colonel Congreve’s Wooden Pontoons.

The common pontoons will support a weight of 4 or 5000 pounds. They are generally placed, in forming a bridge, about their own width asunder. See the word Bridge.

PORTFIRES.

Composition. Saltpetre, 60 parts; sulphur, 40 parts; mealed powder, 20 parts. Length of each, 16½ inches.

One will burn from 12 to 15 minutes.

Weight of one dozen, 3 lbs. 12 oz.

Portfires were made at Gibraltar in the following manner; two ounces of nitre was dissolved in a gallon of water, and sheets of soft brown paper dipped in the solution: these when dry were rolled up to about the size of common portfires.

PROVISIONS.—See the word Ration.

PROOF—of ordnance.

All natures of ordnance undergo several kinds of proof before they are received into his Majesty’s service; viz. 1st, They are guaged as to their several dimensions, internal and external, as to the justness of the position of the bore, the chamber, the vent, the trunnions, &c.

2d, They are fired with a regulated charge of powder and shot, and afterwards searched to discover irregularities or holes produced by the firing.

3d, By means, of engines an endeavour is made to force water through them; and,

4th, They are examined internally, by means of light reflected from a mirror.

Iron Guns.—The guns are first examined as to their proper dimensions, in which, in no case more than ³/₁₀ of an inch variation is allowed; and in the diameter of the bore only ¹/₃₀ from 42 to 18 pounders, and ¹/₄₀ from 12 to 4 pounders; but in the position of the bore ½ an inch out of the axis of a piece from a 42 to an 18 Pr. and ⅓ of an inch from a 12 to a 4 Pr. is allowed. They are then fired twice with the charge in the following table, with one shot and two high junk wads; and examined with a searcher after each round. In this examination they must not have any hole or cavity in the bore of ²/₁₀ of an inch in depth, behind the first reinforce ring, or ¼ of an inch in depth before this ring.

Iron guns are scaled with ¹/₁₂ the weight of the shot.

Brass Guns.—From 1 pounders to 12 pounders the diameter of the bore must not vary more than ¹/₁₀ of an inch, and in no dimensions more than ²/₁₀. The following are the established charges for their proof. The heavy and medium guns with a charge equal to the weight of the shot, except the medium 12 pounder, which is proved with only 9 lbs. The light guns with half the weight of the shot. The brass ordnance have not however been proved of late with such heavy charges, but with the following:

• 3 Prs. light, 3 times, with 1 lb. each round.
• 6 Prs. light, 3 times, with 2 lbs. each.
•  12 Prs. light, 2 times, with 4 lbs. each.
•  12 Prs. Med.  2 times, with 5 lbs. each.

Any hole .15 of an inch deep upwards or sideways in the bore, or .1 in the bottom, between the breach and first reinforce; or .2 of an inch upwards or side ways, or .15 in the bottom of the bore, before the first reinforce ring, will be sufficient to condemn them.

Brass Mortars and Howitzers.—The exterior dimensions are in no respect to deviate more than ¹/₁₀ of an inch in an 8 inch howitzer, and ¹/₂₀ in the royals and Coehorn mortars and howitzers. Their bores and chambers not to deviate from their true diameters or positions more than ¹/₄₀ of an inch.

The brass mortars and howitzers are fired twice with their chambers full of powder, and an iron shell. The mortars on their own beds, at about 75° elevation; and the howitzers on their carriages, at about 12°. Iron mortars are proved on their iron beds; with a charge equal to the full chamber, and an iron shot equal in diameter to the shell.

Royals, or Coehorn mortars, having a hole .1 of an inch in depth in the chamber, or .15 in the chase, are rejected: royal howitzers the same. 8 inch howitzers having a hole .15 of an inch in depth in the chamber, or .2 in the chase, will be rejected.

Carronades.—The diameter and position of their bore and chamber must not deviate ¹/₂₀ of an inch. They are proved with two rounds, with their chambers full of powder, and 1 shot and 1 wad. A hole of ²/₁₀ of an inch in depth in the bore, or ¹/₁₀ in the chamber condemns the piece.

Proof Charges.

All ordnance, after having undergone this proof, and the subsequent searching, are subject to the water proof: this is done by means of a forcing pump, having a pipe or hose fixed to the mouth of the piece: after two or three efforts to force the water through any honeycombs or flaws which may be in the bore, they are left to dry; and generally the next day examined by the reflected light from a mirror. If the bore contains any small holes or flaws which have not been discovered by the former proofs, they are very readily found by this; the water will continue to weep, or run from the holes, when the solid parts of the bore are perfectly dry. Ordnance suspected of being bad are often subject to a more severe proof: that of firing 30 rounds quick, with the service charge and 2 shot; and in doubtful cases, where the purity of the metal is suspected, recourse has been had to chemical trials and analysis. A quantity of clean filings taken from a part of an iron gun free from rust, are dissolved in the dilute sulphuric acid, and the quantity of gas disengaged during the solution accurately ascertained. The plumbago which remains after solution is also separated by filtration, and carefully weighed. Now it is well known that the purer the iron, the greater the quantify of inflammable gas obtained, and the less the proportion of plumbago which remains after the solution; from these two parts therefore a tolerable judgment may be formed of the quality of the metal. When the plumbago exceeds 4½ per cent. the iron will always be found deficient in strength; and there has been no instance of a gun bursting where the plumbago did not exceed 3 per cent; that is, where 100 grains of the metal did not leave more than 3 grains of plumbago. The colour of the plumbago is also to be attended to; when it is brown or reddish, it is an indication of hard metal, and when in quantities and mixed with coals, there can be no doubt but that the iron is too soft for cannon.

For the proof of Gunpowder, see that word.

Proof of Iron Shells.—After the shells are guaged and examined as to their dimensions and weight, they must be well scraped out, and the iron pin at the bottom of the inside must be driven down or broken off. They are then to be hammered all over, to knock off the scales, and discover flaws, and no hole, in the large shells is allowed, of more than ¾ of an inch deep. An empty fuze is then driven into the fuze hole, and the shell is suspended in a tub of water, in such manner that the shell be covered by the water, but that it does not run into the fuze: in this situation the nose of a pair of bellows is put in at the fuze hole, and several strong puffs given with the bellows; and if no bubbles rise in the water, the shell is concluded to be serviceable.

Ordnance condemned as unserviceable for any of the foregoing reasons, are marked as follows:

X D, or X S, or X W.

The first signifies that they are found to be faulty in their dimensions, by Desagulier’s instrument; the second, by the searcher; and the third, by the water proof.

R ation—For an officer or soldier.

Complete Ration of the Small Species.

When the small species are not issued, 1½ lbs. of flour or bread, with 1½ lbs. of beef, or 10 oz. of pork, forms a complete ration: or 3 lbs. of beef; or 2 lbs. of cheese; or half a pound of rice, forms a complete ration.

At sea the ration is different. The following table contains the allowance for six soldiers, or four seamen on board of ship, for each day in the week. Women are provisioned at ½, and children at ¼ of a soldier’s allowance, but receive no rum.

• (A) = Beer, Gallons, or half Pints of Spirits,
• or Pints of  Wine.
• (B) = Pint of Oatmeal.
• (C) = lbs. of Butter.
• (D) = lbs. of Butter.

The above are served out by full weights and measures.

When flour, suet and raisins are put on board, they are to be served out in equal proportions with beef, viz. half in beef; the other half in flour, suet, and raisins, on each beef day.

4 lbs. of flour, or 3 lbs. of flour with ½ lb. of raisins, (or ¼ lb. of currants) and ¼ lb. of suet, are equal to 4 lbs. of beef, or 2 lbs. of pork with peas, but are not to be issued in lieu of the latter, except unavoidable, and then the quantities must be certified.

½ lb. of rice is equal to a pint of oatmeal; ½ lb. of sugar is equal to ½ lb. of butter; and 1 lb. of rice is equal to 1 lb. of cheese; 1 pint of oil is equal to 1 lb. of butter, or 2 lbs. of cheese, that is, a pint of oil for the proportion of butter and cheese.

A pint of wine, or ½ pint of brandy, rum, or arrack, is equal to a gallon of beer; 1 lb. of fresh beef is equal to 1 lb. of salt beef; and 1½ lbs. of fresh beef is equal to 1 lb. of pork.

No wine or spirits are to be issued to the troops while in port, nor at sea, till after all the beer is expended.

The masters of transports are to produce a certificate from the commanding officer of the troops on board, of the quantity expended. If any doubt be entertained of the provisions being full weight, a cask must be weighed in the presence of the commanding officer, the master and the mate, and the master may upon the certificate of the commanding officer, and the oath of the mate, issue as much beef and pork as will make up the deficiency.

The weight of each must be as follows: 14 pieces of beef, cut for 8 pound pieces taken out of the cask as they rise, and the salt shaken off, are to weigh 112 lbs. avoirdupois. 28 pieces of pork cut for 4 lb. pieces, are also to weigh, under like circumstances, 112 lbs.

The deductions to betaken for provisions from the pay of officers, noncommissioned officers, or men, are the same for all ranks, and in all corps, under the like circumstances of service, when serving out of Great Britain, on stations where provisions are supplied by the public: also, when embarked in transports or other vessels, (except when serving as marines) also when prisoners of war, and maintained at the expense of Great Britain; also when in general hospitals, whether at home or abroad, a deduction of Six-pence per day.

A deduction of three-pence half-penny from the pay of every noncommissioned officer and private in Jamaica, in New South Wales, or Gibraltar. Noncommissioned officers and soldiers serving as marines shall not be liable to any deduction from their full pay on account of provisions.

Ration for a horse on home service in 1796: 14 lbs. of hay, 10 lbs. of oats, 4 lbs. of straw; for which a stoppage is made of six-pence.

Army Regulations, 1799.

RANK.—Between Land and Sea Officers.

The rank and precedence of sea officers in the classes abovementioned, are to take place according to the seniority of their respective commissions in the sea service. Post captains commanding ships or vessels that do not give post, rank only as majors during the time they command those vessels.

Nothing in this shall give any pretence to land officers to command any of his Majesty’s squadrons; nor to any sea officer to command on shore; nor shall either have right to demand the military honours due to their respective ranks, unless upon actual service.

RECOIL—Of Field Guns on Travelling Carriages, upon Elm Planks.

Recoil of Sea Service, Iron Guns, on Ship Carriages, upon a Horizontal Platform.

Recoil of Land Service, Iron Mortars, on Iron Beds.

RECONNOITERING.—The following necessary observations to be made in examining a country in a military point of view, are principally translated from the Aide Memoire, but improved by some judicious remarks from Mr. Landman’s introduction to reconnoitering.

Before an officer sets out to reconnoiter a country, he should trace out from the best map he can procure, its principal features, which will serve him as a guide in his progress through the principal parts which are to be the subject of his observations, and enable him to connect the whole into one grand plan.

His observations should be expressed by written remarks, and by sketches. For this purpose he must be provided with a sketch book, on the right hand page of which, he may express the appearance of the country by sketches, and on the left, the remarks made on particular parts, with the names of the towns, their distances asunder, &c. with proper references to the sketches. The scale most proper for this purpose is two inches to a mile; if therefore, the sketch book be made six inches wide, and the leaves divided by lines into three equal parts, each division will be one mile, which will be a sufficient scale for the purpose.

1st. Roads.—The principal points to be attended to in examining roads for military purposes, are, their direction; the villages, countries, and rivers, which they pass through; the roads which cross them; their names and the seasons in which they are in best condition; and if ever impassable, their breadth, whether variable or constant; their bottoms, of what principally formed; their ascents and descents, whether practicable for all kinds of carriages. The enclosures may be hedges, ditches, walls, or fences. If the roads require repair for the transport of artillery, and other heavy carriages, observe if the necessary materials are at hand. If they pass over rivers, remark whether by bridges or fords; if through marshes, whether by causeways or otherwise. If two or more roads pursuing the same route, and by which different columns may march, at any part join or cross each other, it will be necessary to observe, whether the march of the columns will be thereby impeded. If they only cross each other, it will be sometimes possible in hollow ways, to throw a temporary bridge across the deepest, by which one column may pass over and the other under the bridge, without interrupting each others march.

2. Fords.—A ford for cavalry ought not to be deeper than 4 feet; for infantry not more than 3 feet. Observe the banks of the ford at each side; their form, steepness, and height; their situation as to the turnings of the river. Their bottom, whether passable for carriages. Observe marks by which the ford may be readily found; points from which it may be protected. Notice the rapidity of the water; whether its height be variable; its direction, its breadth, and the means by which the ford may be destroyed or rendered impassable.

3. Inundations.—Learn the manner of working the sluices; the time in which the inundation may be effected; its extent and depth. Observe how the dam may be protected; its height and solidity; whether it can be easily raised, or easily destroyed; whether it is commanded by distant positions, and whether the inundation can be otherways drained. Notice the adjacent country.