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 calcium, 640 grains.
Simple elixir, 15.5 fluidounces.
Dissolve the bromide of calcium in the simple elixir, and filter if necessary.
Each fluidrachm (teaspoonful) of the finished elixir contains five grains of bromide of calcium. This proportion was recommended by Robert W. Gardner, 1880.