Peptonized Milk

Put the powder with the water, which has been boiled and cooled, into a sterilized pint glass can, and shake them until the powder is dissolved. Add the milk and shake it slightly again. Put the can into a cooker-pail of warm water and heat it over a moderate fire until the water is 115 degrees Fahrenheit. Set it into a previously warmed cooker for from ten to thirty minutes. If it remains too long it will develop an unpleasant flavour. When done, remove it to a saucepan and bring it quickly to a boil. Keep it in a cold place if it is not used immediately.