29 OCTOBER 1864, Page 24

A Series of Metric Tables, in which the British Standard

Measures and Weights are compared with those of the Metric System. By Charles Hutton Dowling. (Lockwood and Cg.)—Whether Mr. Ewart's Bill legalizing the use of the metric system in this country will produce much change in the habits of commercial men remains to be seen, but certainly it needs some such supplement as this admirable ready- reckoner by Mr. Dowling. The equivalents are given in columns, and the numbers are carried so high that neither student nor merchant will often be driven to calculate for himself. There are also tables comparing the three different thermometers known as Fahrenheit's, Reaumur's, and the Centigrade. Paper and type are both excellent—things of some moment in a book which must bear thumbing.