This section is from the "Elixirs And Flavoring Extracts. Their History, Formulae, & Methods of Preparation" book, by John Uri Lloyd. Also available from Amazon: Elixirs and flavoring extracts,: Their history, formulae, and methods of preparation;
Bromide of iron, 256 grains.
Simple elixir, 16 fluidounces.
Dissolve the bromide of iron in the simple elixir by triturating them together in a mortar, and then filter. Should the bromide of iron fail to completely dissolve (as is often the case), the product will be accordingly deficient in strength.
Each fluidrachm (teaspoonful) of the finished elixir contains two grains of bromide of iron.