Sugar, very hot and very cold drinks, tea and sweets, are great enemies to the teeth. How many girls have lost their teeth from eating chocolates!
Some drugs have a deleterious influence upon the teeth. Iron causes them to become a dirty transparent brown. It is only temporary, however, and if the teeth are well cared for during a course of iron, no permanent damage will ensue.
Calomel is supposed by nearly everybody to be a great enemy to the teeth, but given as it is now, in small doses, it in no way affects them.
(To be continued.)
[SILVER POINT DRAWING.]
So light and airy, dainty and delicate, is this delightful process, that it may well be called the fairy queen of the graphic arts. So white is the paper or card on which it is produced, and so beautiful the chemical changes of colour it undergoes when first produced, that no process of reproduction can give more than a faint idea of the beauty of an original silver point drawing.
Many times have I been told, "Oh, I have a silver point drawing by So-and-so," but on nearly every occasion, when inspected, the treasure has turned out to be merely a photographic reproduction, giving, it is true, the form of the original, but without a particle of its colour or daintiness of appearance.
Under these circumstances it will be well to commence by stating what a silver point drawing is, and how to tell an original from a reproduction.