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._ +-------------+--------+----------+----------+----------+ | | | 1 Shot, | 2 Shot |Case Shot,| | Nature. | Charge |at 1° 30′ |at 1° 30′ |at 3° 45′ | | | |Elevation |Elevation |Elevation | +-------------+--------+----------+----------+----------+ | |lbs. oz.| Feet. | Feet. | Feet. | | | | | | | |12 Pr. Medi. | 4 — | 12 | 25 | 8½ | | 6 Pr. Heavy | 2 — | 7 | 11 | 7½ | | 6 Pr. Light | 1 8 | 12 | 21 | 10 | | 3 Pr. Heavy | 1 — | 7 | 5 | 3½ | +-------------+--------+----------+----------+----------+ _Recoil of Sea Service, Iron Guns, on Ship Carriages, upon a Horizontal Platform._ +------------------------+----------+-------+-------+-------+ | Charges of Powder |Elevation.|32 Pr. |24 Pr. |18 Pr. | | and Shot. | | | | | +------------------------+----------+-------+-------+-------+ | | Deg. |Ft. In.|Ft. In.|Ft. In.| | | | | | | | ⅓ of Powder and 1 Shot | 2 |11 — |11 — |10 6 | | ⅓ of Powder and 2 Shot | 4 |19 6 |18 6 |18 — | | ¼ of Powder and 2 Shot | 7 |11 6 |12 — |12 — | +------------------------+----------+-------+-------+-------+ _Recoil of Land Service, Iron Mortars, on Iron Beds._ Ft. In. 13 Inch, with a charge of 6 lbs. 4 2½ 10 Inch, ” ” 3 lbs. 2 10 8 Inch, ” ” 1 lb. 9 oz. 3 10 _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.