EXTEMPORE GASEOUS CHALYBEATE WATER.
Take of pure sulphate of iron 2 drachms, white sugar 3 drachms, pulverize, mix and divide into 12 powders. Then take of super carbonate of soda 2 drachms, white sugar three drachms, mix and divide into 12 powders. Mix one of each of the powders separately in half a tumblerful of water, pour together and drink while effervescing. This is a pleasant drink and a good tonic for a weak stomach.