THIRTEENTH EDITION, Thoroughly Revised. Fully Illustrated. Price 68. PRACTICAL SANITATION: A Handbook for Sanitary Inspectors and Others interested in Sanitation. BY GEORGE REID, M.D., D.P.H., Fellow, Mem. Council, and Examiner, Sanitary Institute of Great Britain, and Medical Officer to the Staffordshire County Council. With an Appendix on Sanitary Law (Rewritten). BY HERBERT MANLEY, M.A., M.B., D.P.H., BARRISTER-at-Law. "A VERY USEFUL HANDBOOK, with a very useful Appendix. We recommend it not only to SANITARY INSPECTORS, but to HOUSEHOLDERS, and ALL interested in Sanitary matters." Sanitary Record. SECOND EDITION, Revised. In Crown 8vo. Handsome Cloth. Profusely Illustrated. 8s. 6d. net. SANITARY ENGINEERING: A Practical Manual of Town Drainage and Sewage and Refuse Disposal. For Sanitary Authorities, Engineers, Inspectors, Architects, Contractors, and Students. BY FRANCIS WOOD, A.M. Inst.C.E, F.G.S., A work which may, Borough Engineer and Surveyor, Fulham; late Borough Engineer, Bacup, Lancs. "A VERITABLE POCKET COMPENDIUM of Sanitary Engineering. in many respects, be considered as COMPLETE... COMMENDABLY CAUTIOUS. ESTING... SUGGESTIVE," - Public Health Engineer. INTER Beautifully Illustrated, with numerous Plates, Diagrams, and Figures in the Text. 21s. net. TRADES' WASTE: ITS TREATMENT AND UTILISATION. A Handbook for Borough Engineers, Surveyors, Architects, and Analysts. By W. NAYLOR, F.C.S., A.M. Inst. C.E. "There is probably no person in England to-day better fitted to deal rationally with such a subject."-British Sanitarian. With Four Folding Plates and numerous Illustrations. Large 8vo. 8s. 6d. net. WATER SUPPLY: A Practical Treatise on the Selection of Sources and the Distribution of Water. BY REGINALD E. MIDDLETON, M. Inst.C.E., M. Inst. Mech. E., F.S.I. "As a companion for the student, and a constant reference for the technical man, we anticipate it will take an important position on the bookshelf."-Practical Engineer. SMOKE ABATEMENT: A Manual for the Use of Manufacturers, Inspectors, Medical Officers of Health, Engineers, and Others. WILLIAM NICHOLSON, Chief Smoke Inspector to the Sheffield Corporation. "We welcome such an adequate statement on an important subject."-British Medical Journal. LONDON: CHARLES GRIFFIN & CO., LTD., EXETER STREET, Strand. SEWAGE TREATMENT. BY PROFESSOR DR. DUNBAR, DIRECTOR OF THE HAMBURG STATE HYGIENIC INSTITUTE. TRANSLATED, WITH THE AUTHOR'S SANCTION, BY H. T. CALVERT, M.Sc., PH.D., F.I.C., CHIEF CHEMICAL ASSISTANT, WEST RIDING OF YORKSHIRE RIVERS BOARD AUTHOR'S PREFACE. DURING the last few years I have been repeatedly asked to write a comprehensive book on the sewage problem. About a year ago, when preparing a lecture on the then position of the subjects of river pollution and sewage treatment, I decided to abandon the scruples which I had previously held against writing such a book. I then thought the task was an easy one, for during the previous ten years or more I had carefully followed al matters connected with the sewage problem. However, I have had to make many inquiries and investigations, and my material has gradually become almost unlimited, so that it would now be easier for me to compile a work of reference than to write a short book on the principles of the snbject. I do not consider the time ripe for the publication of a work of reference, because the whole problem of sewage disposal is developing just now at such a rapid rate that opinions which have been held for a very long time are daily giving way in the face of newly-established facts. Under these circumstances, those who have not been able to follow the separate phases of this development become hopelessly lost in attempting to follow the literature on the subject; they do not recognise all the new forms of apparatus which are mentioned and the new names which are used, and thus feel the need of a book dealing with the principles of the subject, a book written during the development itself, and grouping and critically describing the various phases of this development. Such a book cannot pretend to deal fully with all the numerous legal enactments and proposals which have been made with regard to sewage treatment. Bearing all this in mind, I have repeatedly been forced to omit some facts which are of themselves valuable as supporting various opinions, and others which appeared to require further investigation before being finally accepted. Whilst the book has been passing through the press a considerable number of contributions to the subject have been published. I have tried to include these as far as possible in my material, but a full discussion will appear as a kind of appendix to this book in the pages of the Gesundheits-Ingenieur. 181017. |