The salt and water should be used every night at bedtime.

The following is an excellent tooth-powder:

Take of finely-powdered Peruvian Bark;

„ Prepared Coral;

„ Prepared Chalk;

„ Myrrh, of each half an ounce;

„ Orris root, a quarter of an ounce:

Mix them well together in a mortar, and preserve the powder in a wide-mouth stoppered bottle.

The teeth ought to be well brushed with the above tooth-powder every morning.

If the teeth be much decayed, and if, in consequence, the breath be offensive, two ounces of finely-powdered charcoal, well mixed with the above ingredients, will be found a valuable addition.