25 JANUARY 1930, Page 29

Dr. Menzies Campbell has written a very useful little volume

in Those Teeth of Yours (Heineman, 35. 6d.) which should be of especial value to all those charged with the care or education of the young. It cannot be too often repeated that sugar in its artificial refined state is a poison, leeching the blood of its salts and causing the teeth to decay. To give children chocolates when they are in bed is little short of a crime. Dr. Campbell makes this and many other things dental very. clear : all of us civilized people suffer more or less from faulty feeding and therefore from unsound teeth. Books such as this, if their advice were followed, would save untold suffering.

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