10 MARCH 1888, Page 42

Elements of Chemistry. By Ira Remsen. (Macmillan and Co.)— Professor

Rernsen thinks that practical work should precede any introduction to theory. Certainly, chemistry is not taught on these principles by the majority of teachers ; besides, the advantage we derive from the labours of others would be partly nullified. The propor- tions in which practice and theory should be mingled depend upon the student, and should be suited to his convenience. The volume will be welcomed by many who know the author's clear and concise mode

of expressing himself, and of going to the point at once. There are numerous experiments, which can be varied, of course, to suit different circumstances ; there is also a little organic chemistry, dealing with a few of the chief organic bodies which are likely to turn up in ordinary analysis. The questions and the index help to make, on the whole, a very neat and handy text-book.