GAS MANUFACTURE (THE CHEMISTRY OF). A Hand-Book on the Production, Purification, and Testing BY W. J. ATKINSON BUTTERFIELD, M.A., F.C.S., Head Chemist, Gas Works, Beckton, London, E. With Numerous Illustrations. Handsome Cloth. Price 98. "The BEST WORK of its kind which we have ever had the pleasure of viewing." Journal of Gas Lighting. re I. Raw Materials for Gas II. Coal Gas. III. Carburetted Water Gas. V. Enriching by Light Oils. VI. Final Details of Manu- VII. Gas Analysis. IX. Applications of Gas. This work deals primarily with the ordinary processes of GAS MANUFACTURE employed in this country, and aims especially at indicating the principles on which they are based. The more modern, but as yet subsidiary, processes are fully treated also. The Chapters on Gas Analysis and Photometry will enable the consumer to grasp the methods by which the quality of the gas he uses is ascertained, and in the Chapter on The Applications of Gas, not only is it discussed as an illuminant, but also as a ready source of heat and power. In the final Chapter, an attempt has been made to trace in a readily-intelligible manner the extraction of the principal derivatives from the crude BYE-PRODUCTS. The work deals incidentally with the most modern developments of the industry, including inter alia the commercial production and uses of acetylene and the application of compressed gas for Street Traction. The needs of the Students in Technical Colleges and Classes have throughout been kept in view. LONDON: EXETER STREET, STRAND. Works by GRENVILLE A. J. COLE, M.R.I.A., F.G.S., Professor of Geology in the Royal College of Science for Ireland. PRACTICAL (AIDS GEOLOGY IN): WITH A SECTION ON PALEONTOLOGY. SECOND EDITION, Revised. With Illustrations. Cloth, ros. 6d. GENERAL CONTENTS.-PART I.-SAMPLING OF THE EARTH'S CRUST. PART II.-EXAMINATION OF MINERALS. PART III.—EXAMINATION OF ROCKS. PART IV.-EXAMINATION OF FOSSILS. "Prof. Cole treats of the examination of minerals and rocks in a way that has never been attempted before DESERVING OF THE Highest praise. Here indeed are 'Aids' INNUMERABLE and INVALUABLE. All the directions are given with the utmost clearness and precision."—Athenæum. "To the younger workers in Geology, Prof. Cole's book will be as INDISPENSABLE as a dictionary to the learners of a language."-Saturday Review. "That the work deserves its title, that it is full of AIDS,' and in the highest degree 'PRACTICAL,' will be the verdict of all who use it."—Nature. "This EXCELLENT MANUAL will be A VERY GREAT HELP. The section on the Examination of Fossils is probably the BEST of its kind yet published. of well-digested information from the newest sources and from personal research."-Annais of Nat. History. OPEN-AIR STUDIES: An Introduction to Geology Out-of-doors. With 12 Full-Page Illustrations from Photographs. Cloth. 8s. 6d. GENERAL CONTENTS.-The Materials of the Earth-A Mountain Hollow -Down the Valley-Along the Shore-Across the Plains-Dead Volcanoes -A Granite Highland-The Annals of the Earth-The Surrey Hills-The Folds of the Mountains. ANIMATION "The FASCINATING OPEN-AIR STUDIES' of PROF. COLE give the subject a GLOW OF cannot fail to arouse keen interest in geology."-Geological Magazine. EMINENTLY READABLE every small detail in a scene touched with a sympathetic kindly pen that reminds one of the lingering brush of a Constable."- Nature. The work of Prof. Cole combines ELEGANCE of STYLE with SCIENTIFIC THOROUGHNESS."— Petermann's Mittheilungen. The book is worthy of its title: from cover to cover it is STRONG with bracing freshness of the mountain and the field, while its ACCURACY and THOROUGHNESS show that it is the work of an earnest and conscientious student. Full of picturesque touches which a re most welcome "-Natural Science. "A CHARMING BOOK, beautifully illustrated.”— Athenæum. * For the Companion-Volume on "OPEN AIR BOTANY" see p. 33. LONDON: EXETER STREET, STRAND. SEWAGE DISPOSAL WORKS: A Guide to the Construction of Works for the Prevention of the Pollution by Sewage of Rivers and Estuaries. BY W. SANTO CRIMP, M. INST. C. E., F.G.S., With Tables, Illustrations in the Text, and 37 Lithographic Plates. Medium PART II.-SEWAGE DISPOSAL WORKS IN OPERATION-THEIR Illustrated by Plates showing the General Plan and Arrangement adopted From the fact of the Author's having, for some years, had charge of the Main Drainage Works of the Northern Section of the Metropolis, the chapter on LONDON will be found to contain many important details which would not otherwise have been available. "All persons interested in Sanitary Science owe a debt of gratitude to Mr. Crimp. His work will be especially useful to SANITARY AUTHORITIES and their advisers gives plans and descriptions of MANY OF THE with very valuable information as to The carefully-prepared drawings per EMINENTLY PRACTICAL AND USEFUL MOST IMPORTANT SEWAGE WORKS of England "Probably the most complete and best treatISE on the subject which has appeared in our language Will prove of the greatest use to all who have the problem of Sewage Disposal to face."-Edinburgh Medical Journal. LONDON: EXETER STREET, STRAND. Griffin's "Pocket-Book" Series. Pocket Size. Leather. With Illustrations. 12s. 6d. HYGIENE (A Hand-Book of), BY SURGEON-MAJOR A. M. DAVIES, D. P. H. Camb., Late Assistant-Professor of Hygiene, Army Medical School. General Contents. Air and Ventilation-Water and Water Supply-Food and Dieting— Removal and Disposal of Sewage-Habitations-Personal Hygiene-Soils and Sites-Climate and Meteorology-Causation and Prevention of Disease -Disinfection. "This ADMIRABLE HANDBOOK possible bulk."-Edin. Med. Journal. gives FULL information compressed into the smallest The elegant dress of the little volume before us is but the outer covering of A TRULY RICH KERNEL, and justly merits the praise it spontaneously calls forth. Attractive to the eye, SurgeonMajor DAVIES' volume is equally attractive to the mind. Students will find that its 590 pages comprise ALL information necessary. COMPACT, HANDY, COMPREHENSIVE, it certainly merits a high place among the text-books of the day."-Sanitary Record. he has had ample opportunity "We are glad to welcome Surgeon-Major Davies' book to make himself A MASTER OF THE SCIENCE, and he has a right to speak. WELL UP TO DATE, well and clearly written, pleasant to read."-The Lancet. WONDERFULLY "Really an ADMIRABLE BOOK. . . . A MOST HANDY WORK OF REFERENCE full of information." -The Hospital. "A singularly compact and elegant volume . . . contains an admirable précis of everything relating to Hygiene CLEARLY and LOGICALLY ARRANGED and easy of reference Likely, we think, to be the favourite text-book."-Public Health. Large 8vo. Handsome Cloth. 12s. 6d. BLEACHING & CALICO-PRINTING. A Short Manual for Students and BY GEORGE DUERR, Director of the Bleaching, Dyeing, and Printing Department at the Accrington and Bacup Technical Schools; Chemist and Colourist at the Irwell Print Works. ASSISTED BY WILLIAM TURNBULL (of Turnbull & Stockdale, Limited). With Illustrations and upwards of One Hundred Dyed and Printed Patterns designed specially to show various Stages of the Processes described. "When a READY WAY out of a difficulty is wanted, it is IN BOOKS LIKE THIS that it is found."Textile Recorder. "Mr. DUERR'S WORK will be found MOST USEFUL. The information given of GREAT The Recipes THOROUGHLY PRACTICAL,"-Textile Manufacturer. VALUE. LONDON: EXETER STREET, STRAND. WORKS BY J. R. AINSWORTH DAVIS, B. A., PROFESSOR OF BIOLOGY, UNIVERSITY COLLEGE, ABERYSTWYTH; DAVIS (Prof. Ainsworth): BIOLOGY (An Ele mentary Text-Book of). In large Crown 8vo, Cloth. SECOND EDITION. PART I. VEGETABLE MORPHOLOGY AND PHYSIOLOGY. With Complete IndexGlossary and 128 Illustrations. Price 8s. 6d. PART II. ANIMAL MORPHOLOGY AND PHYSIOLOGY. With Complete Index. Glossary and 108 Illustrations. Price 10s. 6d. NOTE-The SECOND EDITION has been thoroughly Revised and Enlarged, and includes all the leading selected TYPES in the various Organic Groups. " Certainly THE BEST BIOLOGY' with which we are acquainted. It owes its preeminence to the fact that it is an EXCELLENT attempt to present Biology to the Student as a CORRELATED AND COMPLETE SCIENCE. The glossarial Index is a MOST USEFUL addition."British Medical Journal. "Furnishes a CLEAR and COMPREHENSIVE exposition of the subject in a SYSTEMATIC formi."- Saturday Review. " Literally PACKED with information."-Glasgow Medical Journal DAVIS (Prof. Ainsworth): THE FLOWERING PLANT, as Illustrating the First Principles of Botany. Large Crown 8vo, with numerous Illustrations. 3s. 6d. SECOND EDITION. In "It would be hard to find a Text-book which would better guide the student to an accurate knowledge of modern discoveries in Botany. The SCIENTIFIC ACCURACY of statement, and the concise exposition of FIRST PRINCIPLES make it valuable for educational purposes. the chapter on the Physiology of Flowers, an admirable résumé is given, drawn from Darwin, Hermann Müller, Kerner, and Lubbock, of what is known of the Fertilization of Flowers." DAVIS and SELENKA: A ZOOLOGICAL POCKET-BOOK; Or, Synopsis of Animal Classification. Comprising Definitions of the Phyla, Classes, and Orders, with Explanatory Remarks and Tables. By Dr. Emil Selenka, Professor in the University of Erlangen. Authorised English translation from the Third German Edition. In Small Post 8vo, Interleaved for the use of Students Limp Covers, 45. "Dr. Selenka's Manual will be found useful by all Students of Zoology. It is a COMPRE HENSIVE and SUCCESSFUL attempt to present us with a scheme of the natural arrangement of the animal world.”—Edin. Med. Journal. "Will prove very serviceable to those who are attending Biology Lectures... translation is accurate and clear."-Lancet. LONDON: EXETER STREET, STRAND. The |