One heaping tablespoonful of coffee to a cupful, or half pint, of water will make black coffee. Put the coffee powder into a felt bag, or on a thick flannel laid on a strainer and pour the boiling water over it. The flannel must be thick, and close enough to prevent the fine powder straining through. If enough coffee is used to make it of much depth in the strainer, the water will pass through very slowly and the coffee will be cold, therefore have the pot hot before beginning, and stand it in a pan of hot water while it is dripping. Coffee will not be right unless the water is violently boiling when poured on the grounds. Serve the coffee at once.