WHAT A MOTHER SHOULD KNOW ABOUT BABY'S FEEDING BOTTLE AND NIPPLE.--In the first place, always buy round bottles,--round everywhere, inside and out,--there should be no corners anywhere. The reason for this is, that bottles that are round everywhere, are easily cleaned, and can be thoroughly cleaned, and having no corners they do not lend themselves to collecting dirt and bacteria. When these bottles are first bought they should be boiled. After each feeding they should be thoroughly washed with soap or washing powder. A long-handled bottle brush should be used to help clean the bottle. After the bottle has been thoroughly rinsed a number of times with hot water, it should be set aside filled with warm water into which one teaspoonful of bicarbonate of soda has been put. Before filling them with the freshly prepared food each morning the bottles should be boiled. Every mother with a bottle-fed baby should buy a dozen bottles, all of the same kind and size to begin with. This is a great advantage for a number of important reasons, two or three of which I will mention: 1st. Having enough bottles means that each bottle will be used once only during the twenty-four hours; there is less chance therefore of a bottle being cleaned carelessly. 2nd. Having a fresh bottle for each feeding permits all of the food for twenty-four hours being made at one time. This ensures uniformity of quality of each feeding. 3rd. By cleaning all the bottles at one time (previous to filling) it is more apt to be done thoroughly; and by making all the food for a day at one time it is more apt to be correct than if each feeding was made separately. The baby's nipple should be made of plain black rubber. It should not be too thick because it is necessary to turn it inside out in order to clean it thoroughly. The hole in the nipple should not be too large--if the child can empty the bottle in less time than fifteen minutes the hole is too large. If the milk drops out but does not run it is about right. Don't buy nipples too long or too large. A long nipple tends to gag the child and cause vomiting. A large nipple prevents the child from sucking properly and usually allows the food to be taken too quickly and with air, which causes colic and indigestion. It is well to have always half a dozen nipples of the right kind on hand. When new, nipples should be boiled before using. After each feeding the nipple should be washed in borax and water on both sides, then it should be put in a dish containing fresh, cold, borax water and left there until again required. A large portion of the success of raising healthy, bottle-fed babies is in being everlastingly clean in the details of caring for the bottles and nipples which are in daily use.