=Ammonia= (Aromatic).--Useful in acute indigestion and flatulant colic. Dose, one ounce every two hours until better. =Arnica= (Tincture).--Useful in all cases of bruises and sprains; should be applied frequently. =Arsenic.=--Useful as a tonic or alterative. Dose, five grains given three times a day in the food. =Belladonna= (Tincture).--Useful in allaying pains and spasms. Dose, one to two drachms, repeated every four hours. =Bromide of Potassium.=--Useful as a nerve sedative. Dose, two to four drachms three times a day, given in water. =Castor Oil.=--Useful as a cathartic. Dose, one pint. =Chloral Hydrate=--Useful in allaying pain. Dose, one-half ounce every four hours until relief comes. =Chloroform.=--Useful as an anæsthetic and anodyne in allaying pain. Dose, one to three drachms given in four ounces cold water. =Digitalis= (Tincture).--Useful as a heart stimulant. Also for coughs and colds. Dose, one drachm three times a day. =Dovers Powders.=--Useful for colds and coughs. Dose, three drachms three times a day in feed. =Gentian.=--Useful as a tonic. Dose of tincture, one ounce; of ground, one half ounce--in feed three times a day. =Ginger.=--Useful as a tonic and stimulant. Dose, tincture, one ounce; ground, one ounce--in feed three times a day. =Iodine= (Tincture).--Useful when applied externally for sprains, bruises, etc. =Iodoform.=--Useful when applied to galls. Take one part iodoform and three parts sulphur and cover the gall with the powder. Iodoform one part, cosmoline nine parts, makes a good antiseptic ointment. =Iron= (Sulphate).--Useful for worms and as a tonic. Dose, one half ounce three times a day. =Iron= (Tincture).--Checks bleeding, when applied externally; is a tonic internally. Dose, one half ounce in water three times a day. =Laudanum.=--Useful in allaying pain. Dose, one to two ounces, to be repeated every two hours if pain lasts. =Lead= (Acetate, Sugar of Lead).--Useful for wounds, bruises, sprains, and to allay inflammation. One ounce to one quart of water, and apply often. =Linseed-oil=.--Purgative. Dose, ten to thirty ounces. =Nitre= (Saltpetre, Nitrate Potash).--Is useful in fevers, blood disorders, and sluggish kidneys. Dose, one half to one ounce a day. =Podophyllin.=--Useful in liver disorders. Dose, one to two drachms once a day. =Quinine.=--Useful in all debilitating fevers and where there is loss of appetite. Dose, twenty to thirty grains five times a day in pills. =Resin=.--Useful in kidney disorders. Dose, one half ounce three times a day in feed. =Soda= (Bicarbonate).--Useful in cases where an antacid is required. Dose, six drachms three times a day in feed. =Soda Sulphate= (Glauber Salts).--Useful where a saline laxative is required. Dose, one pound. =Santonine.=--Useful for worms. Dose, two to four drachms. =Sweet Spirits Nitre.=--Useful for colic and kidney trouble. Dose, one to two ounces in cold water, to be repeated if necessary.