This section of the book is from the "Household Companion: The Family Doctor" book
Mix a tablespoonful of oatmeal quite smoothly with two tablespoonfuls of cold water. Add this to a pint of strong beef-tea, and heat to the boiling-point, stirring all the time. Boil for five minutes. Then remove from the fire, skim off all the fat, and serve for use.
Other occasional additions to beef-tea, which will agree with all except the most delicate stomachs, are (though not both at once) raw egg and cream.