Pockets for the reception of the ammunition are very important in saving the ammunition from water which may accumulate, and from the fire of the enemy. The field of fire should not be less than 90 degrees. Avoid narrow embrasures as presenting an easy mark, and as likely to draw the fire of the enemy. Cover should first be provided for the men and horses; then for the material. If the position is occupied for some time, strengthen the parapet by earth from a ditch in front. Prolong the lateral trenches of the adjacent pits until they meet, forming a continuous parapet; if possible, plank or macadamize the bottom of the pit. Traverses between the guns will be found effective. In order to conceal the parapets, cover the fresh earth with boughs, sod, or top-soil of the prevailing or surrounding color. If in winter, use snow for this purpose. A very effective plan is to dig a small trench or parapet from fifty to seventy-five yards in front of the real pits, thus deceiving an enemy as to where the real fire comes from. If the ground does not afford natural cover for the limbers, limber-pits, similar to the Austrian gun-pits, can be easily constructed. They should be one foot deeper. TREATMENT OF SICK MEN. =Bleeding.=--Blood from the veins is dark and flows slowly; that from arteries is bright red and is thrown out in spurts. To suppress bleeding from a vein, use cold water when slight; or place a moderately tight bandage below the wound. If an artery, completely obstruct the artery by pressure at the bleeding point, or between it and the heart. Do this by means of the fingers, a pad and bandage, a plug, or a tourniquet. Make a knot in a handkerchief and place it at the proper spot over the course of the artery, then tie the handkerchief around the limb and by means of a stick twist it tight. In bleeding from hand, fore arm, or arm apply around arm near the shoulder; in bleeding of the foot, leg, or thigh apply around leg between knee and hip according to circumstances. =Chafing.=--Chafing between the thighs may be alleviated by keeping the parts scrupulously clean, and powdered with fuller's earth, or a mixture of oxide of zinc and very finely powdered starch. =Colic.=--Dose of castor-oil, hot applications to belly, and a teaspoonful of Squibb's mixture or ginger essence in water. =Cholera Morbus.=--1 teaspoonful of paregoric, ¼ grain of morphine, or 1 teaspoonful of Squibb's mixture diluted may be given at once. Hot applications to belly. Stimulants in case of collapse. =Constipation.=--A seidlitz powder, or a tablespoonful of Rochelle or Epsom Salts before breakfast; a teaspoonful of compound liquorice powder, or 2 or 3 compound cathartic pills, late at night.