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;
Fluid extract of hops, 2 fluidounces.
Alcohol, 1/2 fluidounce.
Simple elixir, 14 fluidounces.
Carbonate of magnesium, a sufficient quantity.
Triturate the fluid extract of hops in a capacious mortar with carbonate of magnesium in amount sufficient to form a creamy mixture, then gradually add the simple elixir, stirring well, and filter. Lastly, mix the filtrate with the alcohol.
Each fluidrachm of the finished elixir represents such an amount of seven and one-half minims of fluid extract of hops as will dissolve in the menstruum. The remarks concerning compound elixir of hops may be applied to this preparation.