Fresh lemon juice strained, 100; bicarbonate of potassium about 10 parts, or enough to neutralise.

Syrupus limonis. Syrup of Lemons, B. and U.S.P. - Boiling lemon juice, strained, 1 pint, with fresh lemon peel, 2 oz.; refined sugar, 2 1/4 pounds (B.P.). Boiling lemon juice, 40; fresh lemon peel, 2; sugar, 60; water up to 100 (U.S.P.).

Not officinal. Decoction of Lemon. - Cut a fresh unpeeled lemon (best when pulled immediately from the tree) into thin slices, put it into three teacupfuls of water, and boil it down to one teacupful in a clean earthenware jar. Allow it to stand over night in the open air, and give it the first thing in the morning. Free it, by compression and filtration, from rind, pulp, and seeds just before it is drunk.

Uses. - It is used locally as a gargle in sore-throat; to relieve itching in pruritus of the scrotum, in uterine haemorrhage after delivery, and mixed with equal parts of glycerine as an application to the face in sunburn. Internally it is refrigerant, and forms a pleasant drink, allaying the thirst in fevers. It is used, in place of citric acid, to make effervescent mixtures and drinks. It is antiscorbutic, and is employed to prevent scurvy in long voyages. The decoction of lemon is said to be a powerful antiperiodic, and to be exceedingly useful as a substitute for large doses of quinine in cases of ague, typho-malarial fevers, and malarious conditions generally. It appears to be useful in reducing the temperature in typhoid fever even when no malarial complication exists.