On the bottom of a large kettle filled with cold water, place an ordinary flatiron stand upon which is put a folded towel. On this place the bottle of milk as it comes from the dairyman, with the cap of the bottle loosened. The cold water in the kettle should come up to within an inch of the top of the bottle of milk. Heat this water quickly up to just the boiling point--until you see the bubbles beginning to rise to the top. The gas is then turned down or the kettle is placed on the back of the range and held at this near-boiling point for thirty minutes, after which it is taken to the sink and cold water is turned into the water in the kettle, until the bottle of milk is thoroughly cooled. It is now ready to be made up into the modified food for baby. Never let pasteurized milk stand in the room, nor put it near the ice when warm. It must be cooled rapidly, as described above; that is, within fifteen or twenty minutes. The "spores" of the milk are not killed by pasteurization and they hatch out rapidly unless the milk is kept very cold, and, as already stated, it should be used within twenty-four hours after pasteurization. THE CARE OF BOTTLED MILK The certified milk or the ordinary milk that has been delivered to your home and is to be used without pasteurization or sterilization, should receive the following care: 1. It should be placed at once in a portion of the ice box that is not used to store such foods as radishes, cabbage, meats or any other open dishes of food whose odors would quickly be absorbed by the milk. The milk should never be left standing on the doorsteps in the sun, for many reasons: the sun heats the milk, encourages the growth of bacteria, and a passing cat or dog, whose mouth often contains the germs of scarlet fever, tonsilitis, and diphtheria, should it be hungry, laps the tops of the bottles, particularly in the winter when the cream has frozen and is bulging over the edge. 2. It should never be kept in the warm kitchen, as when visiting her sick baby we discovered one young mother doing. In answer to my question, she explained; "Doctor, we do not take ice in the winter time, everything is ice outdoors, so I just set the bottle outside the window bringing it in whenever I need to give the baby some food. I forget to put it out sometimes, but really now, does it matter?" It really matters much, for you see, reader, the milk is first freezing then thawing and it is rendered entirely unfit for the baby. 3. Milk should be kept covered and protected from dust and flies; it should be kept in glass jars which have been sterilized by boiling before being filled, and then placed in the refrigerator. If the milk is sour, or if there is any sediment in the bottle, it is unfit for baby's use. CHAPTER XVIII HOME MODIFICATION OF MILK