Laudanum: 10-20 m., anodyne and soporific; with equal quantity opodeldoc, applied as an anodyne.

Lime-water: antacid; checks infantile diarrhœa; mixed with sweet oil affords great relief when applied to burns.

Liquorice powder (compound): 1 tea., mild aperient, best for piles.

Milk of sulphur: 1 tea. rubbed up with milk, gentle aperient and cooling, useful in rheumatism and piles.

Morphia bimeconate: 5 m. increasing every 3 hours; most valuable sedative and soporific; applied as an anodyne after the part has been reddened by compound camphor liniment.

Muriate (chloride) of ammonia: 10 gr. in wineglassful water, good expectorant in bronchitis; 1 oz. with 1 oz. alcohol and 10 oz. water; stimulant lotion for sprains.

Nitrate of silver: 2-4 gr. in 1 oz. water, lotion for sore nipples; 20 gr. in 1 oz. water, throat wash in diphtheria.

Nitre (saltpetre): 5 gr. in saline draught, cooling and diuretic for fever; ¼ oz. in ½ pint barley water, gargle for inflamed sore throat.

Nitric acid (dilute): 10 m. with 5 m. tincture of chiretta, 15 m. tincture of orange and 10 m. syrup in 1 wineglassful water, excellent between meal-times for convalescents.