219. Lime in a medical point of view is of great importance as the basis of LIME WATER (in India it is essentially necessary to see that nurses and sick attendants understand the difference between Lime Water and Lime Juice; accidents have been known to occur from their ignorance), a mild and useful antacid; it is prepared by adding two ounces of slaked lime to one gallon of water, in a stoppered bottle, shaking well for two or three minutes, and then allowing it to stand till the lime is deposited at the bottom. In cases of emergency, as burns, &c., half an hour is sufficient for this purpose; otherwise it should be allowed to stand for twelve hours at least before being used. It is _only the clear water which holds a portion of Lime in solution, which is employed in medicine_. It is advisable always to keep a supply ready prepared, as it is useful in many ways, and it will remain good for a long time, if kept in well-stoppered bottles, so that the air cannot have access to it. The dose for adults is from 1 to 3 ounces twice or thrice daily; it is best administered in milk. 220. Another form, called the SACCHARATED SOLUTION OF LIME, thought to be better adapted for internal use in the diseases of childhood and infancy, is prepared by carefully mixing together in a mortar one ounce of Slaked Lime and two ounces of powdered White Sugar, and adding this to a pint of Water, as described above. It should be kept in a well-stoppered bottle. The dose of _the clear water_ is from 15 to 20 drops or minims in milk twice or thrice daily. 221. _In Acidity of the Stomach, in Heartburn, and_ _in those forms of Indigestion arising from or connected with acidity of the stomach_, Lime Water in doses of 1½ to 2 ounces, is often speedily and permanently effectual. It is particularly useful in indigestion when the urine is scanty and high coloured, and when vomiting and acid eructations are prominent symptoms. It is best given in milk. 222. _In Diarrhœa arising from Acidity_ Lime Water frequently proves useful; it is best given in a solution of gum arabic or other mucilage, and in obstinate cases ten drops of Laudanum with each dose increases its efficacy; it may also be advantageously combined with Omum water (317). _In Chronic Dysentery_ the same treatment sometimes proves useful. Enemas of Lime Water diluted with an equal part of tepid milk or mucilage have also been used with benefit. It is especially adapted for the _Diarrhœa and Vomiting of Infants and young children which result from artificial feeding_; in these cases a sixth or a fourth part of Lime Water may be added to each pint of milk. The Saccharated Solution of Lime (220) has also been found of great service in this class of cases.