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I suppose it is generally true that for most of the established professions, those who are outside any particular ‘magic circle’ regard the business which is carried on inside it as a complete mystery; full of pitfalls for the unwary; needing an enormous amount of hard work and training to get to the ‘top of the tree’; closely protected by an association or society, or even by the law!—and so on.

Before attempting to decide what are and what are not legitimate constituents of toilet and domestic soaps, it is necessary first to touch upon another question to which in some way it is more difficult to give a definite and satisfactory reply—namely, to what is the cleansing power of soap due? The answer to this depends a good deal upon the standpoint from which the matter is viewed. To the chemist the exact explanation is hardly yet entirely forthcoming, and he can at present only answer in a general way by saying that the chief value of a soap is owing to its power of dissolving or emulsifying fats; but why it does so is still more or less under discussion. It has been shown that a solution of a neutral soap when largely diluted with water is decomposed into free alkali, and a fatty acid which is precipitated.

Town Clerk's Office, Town Hall, Bethnal Green, E. 18th November, 1916. To the Chairman and Members of the Public Health Committee. Mr. Chairman and Gentlemen, At a recent meeting of the Public Health Committee, the Chief Sanitary Inspector reported upon legal proceedings which had been unsuccessful owing to the case of “Hunt v. Richardson” decided by a King's Bench Divisional Court of five Judges on the 2nd June, 1916, and I then reported upon the legal aspect of the case.

IN view of the ever‐increasing application of time and motion study techniques in this country it is difficult to understand why so few manufacturers of time and labour‐saving equipment advertise the very items required by work study engineers.