Fig. 11 is the camp of a squadron of cavalry.  A single company encamping alone, would be arranged in the same way as an entire squadron.  The horses are picketed in two lines parallel to the tents, and at a distance from them of about 12 feet.  The forage is placed between the tents.  A squadron of two companies will occupy a front of about 180 feet.  The fires, or company kitchens, should be 50 or 60 feet in rear of the non-commissioned officers’ tents.

Fig 12 is the camp of two batteries of foot artillery, or two companies of foot engineers.

[The plan of encampment for artillery, as given in the “Instruction of U.S.  Field Artillery, horse and foot,” may be employed where a single battery encamps by itself, or where only the skeleton of companies is maintained; but it will be found exceedingly inconvenient, where a full battery, with a large train, encamps on the same line with other troops.  The plan we have given is that which is employed in most European services.]

Fig. 13.—­In this plan for mounted artillery and engineers, the fires are so arranged as to expose the ammunition as little as possible to the sparks from the kitchens.

Fig. 14.—­Simple parallel order of battle.

15.—­Parallel order, with a crochet on the flank.

16.—­Parallel order, reinforced on a wing.

17.—­Parallel order, reinforced on the centre.

18.—­Simple oblique order.

19.—­Oblique order, reinforced on the assailing wing.

20.—­Perpendicular order.

21.—­Concave order.

22.—­Convex order.

23.—­Order by echelon on a wing.

24.—­Order by echelon on the centre.

25.—­Combined order of attack.

26.—­Formation of infantry by two deployed lines.

27, 28.—–­ Arrangements corresponding to depth of column.

29.—­Formation by squares.

30.—­Mixed formation of three battalions.

31.—­Deep formation of heavy columns.

32.—­Formation in columns by brigade.

33.—­Formation of two brigades of cavalry, by the mixed system.

34.—­Passage of the Sound by the British fleet, in 1807.

35.—­Attack on Copenhagen.

36.—­Attack on Algiers.

37.—­Attack on San Juan d’Ulloa.

38.—­Attack on St. Jean d’Acre.

39.—­Plan of a regular bastioned front of a fortification.

40.—­Section of do. do.

41.—­Tenaillons.

Fig. 42.—­Demi-tenaillons, with a bonnet.

43.—­A horn-work.

44.—­A crown-work.

45.—­A redan.

46.—­A lunette.

47.—­A mitre or priest-cap.

48.—­A bastioned fort.

49.—­Vertical section of a field intrenchment.

50.—­Simple sap.

51.—­Flying sap.

52.—­Full sap.

53.—­Crater of a military mine.

54.—­Plan of the attack of a regular bastioned work.