2.5lb or 1125g of Sugar
2 fluid ounces or 6 centilitres of Citric Acid
1 Tablespoon Lemon Juice (Concentrated)
3 pints or 141 centilitres of Water (Boiling)
Baking Soda

Mix well the citric acid, the sugar and the boiling water until the sugar has dissolved, then let cool. Stir in the lemon juice, chill, bottle and store. Note: Use as a tonic, mixing a pinch of baking soda and a teaspoon of the mixture for every glass of water.