Part II. SEWERAGE. Demy 8vo. 18/- net.

CONTENTS.—General Principles of Design. Evolution of a Scheme. Size of Sewers. Quantity of Sewage. Velocity of Flow. Flushing. Excavations. Construction of Pipe Sewers. Construction of Built Sewers. Sea Outfall Sewers. Sewer Ventilation. Manholes. Lampholes. Street Gullies. Inverted Syphons. Raising Sewage. Storm Overflows. Connection to House Drains. Specifications and Schedules for Sewerage Work. Drainage and Sewerage of Housing Schemes. Index.

_Town Planning in Madras._ =H. V. Lanchester, F.R.I.B.A.=, etc. 12/6 net.

CONTENTS.—The Ethics of Town Planning. Historical Outlines of Town Planning. The Civic Survey. Economic Studies. Tradition and City Development. City Life and Housing. Commerce and Traffic. The Technique of City Development. Indian and European Cities. Problems in India. The Uses of the Town Planning Act. Madras City. The Improvement of Madras City.

Irrigation and Water Supply.

_Water Purification and Sewage Disposal._ =Dr. J. Tillmans=. (See p. 30.)

_Rainfall, Reservoirs and Water Supply,_ =Sir Alexander Binnie, M.Inst.C.E.= (See p. 30.)

_Irrigation: Its Principles and Practice as a Branch of Engineering._ =Sir Hanbury Brown, K.C.M.G., M.Inst.C.E.= 2nd Edn. Revised. Demy 8vo. 16/- net.

CONTENTS.—Irrigation and its Effects. Basin Irrigation. Perennial Irrigation and Water “Duty.” Sources of Supply. Dams and Reservoirs. Means of Drawing on the Supply. Methods of Construction. Means of Distribution. Masonry Works on Irrigation Canals. Methods of Distribution of Water. Assessment of Rates and Administration. Flood Banks and River Training. Agricultural Operations and Reclamation Works. Navigation. Appendices. Index.

_Irrigation Works._ The “Vernon Harcourt” Lectures of 1910. =Sir Hanbury Brown, K.C.M.G., M.Inst.C.E.= Demy 8vo. Stiff Paper Cover. 1/- net.

_Agriculture and Irrigation._ =Kinsley D. Doyle.= Demy 8vo. 288 pp. 19/- net.

CONTENTS.—The Soil. Fertilizers. Irrigation. Wells and Pumping. Dry Farming and Economics. Pastures, Natural and Artificial. Notes on Forests, Cattle, Pigs and Carobs. Runs and Farms for Sheep and Ostriches. Cereals. Apples. Asparagus, Onions and Potatoes. Citrus Orchards. Grapes, Walnuts and Pistachio Nuts. Some Special Industries. Some Tropical Fruit. Tropical Plantations. Planting and Sowing for Oil. Tropical Agriculture.

_The Practical Design of Irrigation Works._ =W. G. Bligh, M.Inst.C.E.= New and Enlarged Edition in Preparation.

_Notes on Irrigation Works._ =N. F. Mackenzie, Hon. M.A., Oxon.; M.Inst.C.E.=; lately Under-Secretary for Irrigation to the Government of India. Demy 8vo. 7/6 net.

Telegraphy and Telephony.

_Telegraph Engineering._ For practising Telegraph Engineers and Engineering Students. It presents in a logical manner the subject of modern Land and Submarine Telegraphy from an Engineering viewpoint. =E. Hausmann, E.E., Sc.D.= Demy 8vo. 192 Illustrations. 12/6 net.

_The Propagation of Electric Currents in Telephone and Telegraph Conductors._ =J. A. Fleming, M.A., D.Sc., F.R.S.=, Pender Professor of Electrical Engineering in the University of London. 3rd Edn. Revised. Demy 8vo. 21/- net.

CONTENTS.—Preface. Mathematical Introduction. The Propagation of Electro-Magnetic Waves along Wires. The Propagation of Simple Periodic Electric Currents in Telephone Cables. Telephony and Telegraphic Cables. The Propagation of Currents in Submarine Cables. The Transmission of High-Frequency and Very Low-Frequency Currents along Wires. Electrical Measurements and Determination of the Constants of Cables. Cable Calculations and comparison of Theory with Experiment. Loaded Cables in Practice.

_Toll Telephone Practice._ =J. B. Theiss, B.S., LL.B.=, and =Guy A. Joy, B.E.= With an Introductory Chapter by Frank F. Fowle, S.B. 14/- net.

CONTENTS.—Rural Telephone Equipment. Toll Cut-in Stations. Toll Positions at a Local Switchboard. Toll Switching Systems. Small Toll Switchboards. Multiple-Drop Toll Switchboards. Multiple-Lamp Toll Switchboards. Toll Connections to Local Automatic Systems. Supervisory Equipment and Toll Chief Operator’s Desk. Toll Wire Chief’s Desk. Simplex Systems. Composite Systems. Phantom Lines. Test and Morse Boards. Small Test Panels. Line Construction. Electrical Reactions in Telephone Lines. Cross and Talk Inductive Disturbances. Methods of Testing. Toll Line Maintenance. The Telephone Repeater.

_Radio-Telegraphy._ =C. C. F. Monckton, M.I.E.E.= With 173 Diagrams and Illustrations. Extra Crown 8vo. 7/6 net.

_Radiographic Technique._ =T. Thorne Baker, F.C.S., F.R.P.S., A.I.E.E.= Demy 8vo. 208 pp. Illustrated. 15/-.

CONTENTS.—The Scope of X-Ray Work. The Photographic Plate. The Storage and Handling of Plates. Intensifier Screens. Fluoroscopic Examination. Localisation by Radiography. The Dark Room and its Equipment. Intensification and Reduction. The Technique of the Photographic Print. Industrial Applications of the X-Rays. Analysis with the X-Rays. Appendix.

_The Telegraphic Transmission of Photographs._ =T. Thorne Baker, F.C.S., F.R.P.S., A.I.E.E.= With 66 Illustrations and Diagrams. Crown 8vo. 2/6 net.

_Telegraphy, Aeronautics and War._ =Charles Bright, F.R.S.E., M.Inst.C.E.=, etc., Author of “Submarine Telegraphs,” “Imperial Telegraphic Communication,” etc. Demy 8vo. 16/- net.

Electrical Engineering.

_Single-Phase Electric Railways._ =E. Austin.= Over 290 pages. 346 Illustrations. 21/- net.

CONTENTS.—The Single-Phase System. The London, Brighton and South Coast Railway. The Midland Railway. The Midi Railway. The Blankenese-Hamburg-Ohlsdorf Railway. The Dessau-Bitterfeld Railway. The Murnau-Oberammergau Railway. The Mittenwald Railway. The St. Polton-Mariazell Railway. The Martigny-Orsières Railway. The Valle-Maggia Railway. The Rhætian Railway. The Lötschberg-Simplon Railway. The Rotterdam-Scheveningen Railway. The Thamshavn-Lokken Railway. The Rjukan Railway. The Swedish State Railways. The Parma Single-Phase Tramways. The New York, New Haven and Hartford Railway. The New York, Westchester and Boston Railway. The Spokane and Inland Empire Railway. The Rock Island and Southern Railway. The Hoosac Tunnel Railway. The St. Clair Tunnel Railway.

_Application of Electric Power to Mines and Heavy Industries._ =W. H. Patchell, M.Inst.C.E., M.I.M.E., M.Am.I.E.E.= (See p. 23.)

_Overhead Transmission Lines and Distributing Circuits: Their Design and Construction._ A very thorough and much-needed Treatise dealing exhaustively with this important subject. =F. Kapper.= Translated by =P. R. Friedlaender, M.I.E.E.= Crown 4to. Fully Illustrated. 16/- net.

CONTENTS.—Conductor Materials. Sag and Tension of the Line. Design of the Supporting Structures. Stability of Poles and Masts. The Forces on the Foundation Piece. Fixing the Poles in the Ground. Concrete and Cement Foundation Work. Pole Construction. Overhead Line insulators. Attachment of the Insulators to their Pins. Attachment of the Wire to the Insulators. Joints and Branch Connections on the Wire. Arrangement of the Wires. Earthing. Crossing over Postal Wires, Railways and Roads. Erection of Poles and Masts. Erecting the Wire. Rules and hints for the Design and Erection of Overhead Lines. Instruments for Surveying and Laying out the Route of a Line. Surveying the Route of a Transmission Line. The Most Economical Length of Span. Comparison of the various Supporting Structures with Reference to the Minimum Annual Charges. Local Overhead Distributing Systems. Agreements with Contractors. Tools and Appliances. Regulations dealing with the Erection and Operation of Overhead Lines.

_Electric Mine Signalling Installations._ A Practical Treatise on the Fitting-up and Maintenance of Electrical Signalling Apparatus in Mines. =G. W. Lummis Paterson.= Crown 8vo. 140 Illustrations. 5/- net.

CONTENTS.—Ringing Keys and Tappers. Electric Mining Bells, Signal Alarms and Relays. Electric Mining Indicators or Annunciators. Electric Generators for Mine Signal Installations. Primary Batteries for Signal Installations. Electric Mining Shaft Signals. Electric Shaft Signal Wiring. Electric Engine Plane Signals. Electric Engine Plane Signal Wiring. Appendix.

_Electric Welding and Welding Appliances._ =H. Carpmael.= Imperial 8vo. Illustrated. (The Engineer Series.) 18/- net.

CONTENTS.—Introduction. The Bernardos Carbon Arc Process. Resistance Welding. Arc Welding at Steel Barrel Works. The Pontelec Methods and Machines. The Quasi-Arc Process. Resistance Welders of the British Insulated and Helsby Cables, Ltd. Machines and Apparatus for Arc Welding. Resistance Welders of the Electric Welding Co., Ltd. Some Large American “Spot” Welders. Oil Drum Making by Resistance Welding. Resistance Welders of the A1 Manufacturing Co., Ltd. The strength of Electric Welds. A large British “Spot” Welding Machine. The “Plastic-Arc” Welding System. The “A.C.” System of Arc Welding. Index.

_Transmission Line Formulas._ For Electrical Engineers and Engineering Students. =H. B. Dwight, A.M.Am.I.E.E.= 143 pages. 28 Diagrams. 12/6 net.

_Electric Cooking, Heating, Cleaning, etc._ Being a Manual of Electricity in the Service of the Home. =“Housewife” (Maud Lancaster).= Edited by =E. W. Lancaster, A.M.Inst.C.E., M.Inst.E.E.= Fully Illustrated. 338 + x pages. Demy 8vo. 4/- net.

_Electric Mechanism._ Part I. SINGLE-PHASE COMMUTATOR MOTORS. =F. Creedy, A.C.G.I., A.M.I.E.E., Assoc. Am.I.E.E.= Demy 8vo. 7/6 net.

_Industrial Electrical Measuring Instruments._ =Kenelm Edgcumbe, M.Inst.C.E., M.I.E.E.= Demy 8vo. 430 pages. 260 Illustrations. 16/- net. 2nd Edition, entirely Re-written and Enlarged.

CONTENTS.—Errors and Accuracy. Constructional Details. Measurement of Resistances and Insulation. Potentiometers. Standard Methods of Current and Pressure Measurement. Moving Iron. Moving Coil. Hot Wire. Induction and Dynamometer Ammeters and Voltmeters. Electrostatic Voltmeters. Power Measurement. Dynamometer, Induction, Electrostatic and Hot-wire Wattmeters. Idle or Reactive Component Meters. Phase or Power Factor Meters. Phase Rotation Indicators. Frequency Meters. Fault and Leakage Detectors. Synchronising Devices. Pyrometers. Instrument Transformers. Graphic or Recording Instruments. Electrical Speed Indicators. Oscillograph and other Wave Form Indicators. Live Main or Charge Indicators. Earth-plate Testing Sets. Rail-bond Testing Sets. Cell-testing Voltmeters. Motor-Car Voltmeters and Ammeters. Voltage and Current Relays. Measurement of the Starting Current of a Motor. Paralleling. Compensated and Crest or Peak Voltmeters.

_Calculation of Electrical Conductors._ =W. T. Taylor, M.Inst.C.E.= Imperial 8vo. 32 pages. Diagrams in the Text. Chart at the end. 10/6 net. The Chart sold separately, 2/- net.

_Solenoids, Electromagnets and Electromagnetic Windings._ =Charles Underhill, A.M.A.I.E.E.= 346 pages. 218 Illustrations. Demy 8vo. 2nd Edn. Revised. 10/6 net.

_Switches and Switchgear._ =R. Edler.= Translated, Edited and Adapted to English and American Practice by =Ph. Laubach, A.M.I.E.E.= Fully Illustrated. Demy 8vo. 16/- net.

CONTENTS.—General Remarks on the Design of Switchgear. Connecting Leads. Cable Sockets. Connections. Copper Bars. Contact Blocks. Bolts. Contact Springs and Brushes. Carbon Contacts. Devices to Eliminate Sparking at the Main Contacts. Switches and Change-over Switches for Low Pressure and Medium Pressure. High Pressure Switches. Fuses. Self-Acting Switches (Automatic Switches). Starting and Regulating Resistances. Controllers.

_High and Low Tension Switchgear Design._ =A. G. Collis, A.M.I.E.E.= Demy 8vo. 94 Illustrations. 12/- net.

_Foster’s Electrical Engineer’s Pocket Book._ A Handbook of Useful Data for Electricians and Electrical Engineers. Edited by Horatio =A. Foster, M.A.I.E.E., M.A.S.M.E.= With the Collaboration of Eminent Specialists. 5th Edition, completely Revised and Enlarged. Pocket size. Leather bound. With thumb index. Over 1600 pages. Illustrated. 36/- net.

_The Propagation of Electric Currents in Telephone and Telegraph Conductors._ =J. A. Fleming, M.A., D.Sc., F.R.S.= 21/- net. (See p. 32.)

_Dynamo Laboratory Manual._ =W. S. Franklin= and =William Esty=.

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CONTENTS.—Electrical Units. Electromagnets. Magnetism. Hysteresis. Measuring Instruments. Dynamo Construction. Dynamo Used as Motor. Construction and Management of Motors. Secondary Cells and Their Uses. The Electric Arc. Mercury Vapour Lamps. Incandescent Lamps. Photometry. Switches. Conductors. Insulation.

_Direct and Alternating Current Testing._ =Frederick Bedell, Ph.D.=, Professor of Applied Electricity, Cornell University. Assisted by =Clarence A. Pierce, Ph.D.= Enlarged and Revised Edn. Demy 8vo. 11/- net.

_Internal Wiring of Buildings._ =H. M. Leaf, M.I.M.E.=, etc. 3rd Edn. Crown 8vo. 3/6 net.

_Electric Lamps._ =Maurice Solomon, A.M.I.E.E.= 7/6 net.

CONTENTS.—The Principles of Artificial Illumination. The Production of Artificial Light. Photometry. Methods of Testing. Carbon-Filament Lamps. The Nernst Lamp. Metallic-Filament Lamps. The Electric Arc. The Manufacture and Testing of Arc Lamp Carbons. Arc Lamps. Miscellaneous Lamps. Comparison of Lamps of Different Types.

_The Range of Electric Searchlight Projectors._ =Jean Rey=, Ingenieur Civil des Mines Lauréat de l’Institut. Authorised translation by =J. H. Johnson, M.Inst.E.E., Assoc. A.I.E.E.= 34 Illustrations and Diagrams. 12/6 net.

CONTENTS.—Part I: Illumination by Electric Searchlight Projectors. Determination of the Luminous Flux Emitted by an Electric Arc. Theoretical Illumination obtained with a Specified Reflector. Efficiency of Electric Searchlight Projectors. Practical Value of the Illumination from Searchlight Projectors. Searchlights with Mangin Mirrors. Part II: Range of Electric Searchlight Projectors. General Remarks. General Law giving the Value of the Range apart from the Visual Sharpness. Practical Application of the Law of Ranges, apart from the Visual Acuity. Practical Examples and Problems in respect of the Range. The Variation in the Range with the Size of the Searchlight and the Atmospheric Transparency. Visual Acuity of Sharpness. Appendices and Index.

_Searchlights: Their Theory, Construction and Application._ =F. Nerz.= Translated from the German by =Charles Rodgers=. Royal 8vo. 7/6 net.

_Essentials of Electrical Engineering._ =John Fay Wilson.= Royal 8vo. 282 Illustrations. 16/- net.

CONTENTS.—The Electric Circuit. Magnetism and Magnetic Induction. Practical Construction of the Dynamo. The Continuous Current Generator. The Continuous Current Motor. Losses, Efficiencies and Ratings of Continuous Current Dynamos. Polyphase Alternating Currents. The Alternating Current Generator. The Synchronous Motor. Current Rectifying Apparatus. The Transformer. Transformer Connections. The Induction Motor. Single-phase Commutating Motors. Electric Lamps. Circuit Interrupting Apparatus. Meters. Power Transmission and Distribution. The Storage Battery. Harmonic Quantities. Inductance. Capacity. The Complex Quantity. Admittance, Conductance and Susceptance. Resuscitation from Electric Shock.

_Electric Wiremen’s Manuals._ (See p. 7.)

Electro-Chemistry, etc.

_Electro-Metallurgy._ =J. B. C. Kershaw, F.I.C.= With 61 Illustrations. Extra Crown 8vo. 7/6 net.

CONTENTS.—Aluminium. Bullion and Gold. Calcium Carbide and Acetylene Gas. Carborundum. Copper. Ferro-Alloys. Glass and Quartz Glass. Graphite. Iron and Steel. Lead. Miscellaneous Products. Nickel. Sodium. Tin. Zinc.

_The Manufacture of Chemicals by Electrolysis._ =A. J. Hale, B.Sc., F.I.C.= (A Treatise of Electro-Chemistry. Edited by =Bertram Blount, F.I.C.=) Demy 8vo. Illustrated. 6/- net.

CONTENTS.—Electrolytic Hydrogen and Oxygen. Ozone. Production of Per-Salts and Hydrogen Peroxide. Nitric Acid. Hydroxylamine. Hydrosulphites. Fluorine. Electrolytic Preparation of Pigments and Insoluble Substances. Electro-Osmotic and Electro-Colloidal Processes. Electrolytic Reduction of Organic Compounds. Oxidation and Substitution of Organic Compounds. Appendix. Name Index. Subject Index.

_Ozone._ =S. Rideal, D.Sc., F.I.C., F.C.S.= (A Treatise of Electro-Chemistry. Edited by =Bertram Blount, F.I.C.=) Demy 8vo. 12/- net.

CONTENTS.—Early History of Ozone and its General Properties. The Natural Occurrence of Ozone. Chemical Production. Thermal Production. The Electrolytic Preparation of Ozone. Production by Ultra-Violet Radiation and by Ionic Collision. Production by means of the Silent Electric Discharge. The Catalytic Decomposition of Ozone. Industrial Applications. Methods of Detection and Analysis. Name Index. Subject Index.

Lighting.

_Electric Lamps._ =Maurice Solomon, A.C.G.I., A.M.I.E.E.= Extra Crown 8vo. 7/6 net. (See p. 38.)

_Town Gas and its Uses for the Production of Light, Heat, and Motive Power._ =W. H. Y. Webber, C.E.= With 71 Illustrations. Extra Crown 8vo. 7/6 net.

Thermodynamics.

_Entropy: Or, Thermodynamics from an Engineer’s Standpoint, and the Reversibility of Thermodynamics._ =James Swinburne, M.Inst.C.E., M.I.E.E.=, etc. Illustrated with Diagrams. Crown 8vo. 5/- net.

_Applied Thermodynamics for Engineers._ =William D. Ennis, M.E., M.Am.Soc.M.E.=, Professor of Mechanical Engineering in the Polytechnic Institute of Brooklyn. With 316 Illustrations. Royal 8vo. 21/- net.

_Technical Thermodynamics._ =Dr. Gustav Zeuner.= First English Edition. From the Fifth Complete and Revised Edition of “Grundzuge der Mechanischen Wärmetheorie.”

Vol. I. FUNDAMENTAL LAWS OF THERMODYNAMICS; THEORY OF GASES.

Vol. II. THE THEORY OF VAPOURS.

Authorised translation by =J. F. Klein, D.E.=, Professor of Mechanical Engineering, Lehigh University. Fully Illustrated. 2 Volumes. Demy 8vo. 42/- net.

_A Text-Book of Thermodynamics._ With special reference to Chemistry. By =J. R. Partington, M.Sc.=, of the University of Manchester. 544 + x pages. 91 Diagrams. Demy 8vo. 10/6 net.

CONTENTS.—Thermometry and Calorimetry. The first law of Thermodynamics and some Applications. The Second Law of Thermodynamics; Entropy. The Thermodynamic Functions and Equilibrium. Fluids. Ideal and Permanent Gases. Changes of Physical State. Van Der Waals’ Equation and the Theory of Continuity of States. Thermochemistry. Gas Mixtures. The Elementary Theory of Dilute Solutions. Chemical Equilibrium in Gaseous Systems. Equilibrium in Dilute Solutions. General Theory of Mixtures and Solutions. Capillarity and Adsorption. Electrochemistry. The Theorem of Nernst. Kinetic Theories in Thermodynamics. Index.

_Experimental and Theoretical Applications of Thermodynamics to Chemistry._ =Professor Walter Nernst=, University of Berlin. Extra Crown 8vo. 9/- net.

_Principles of Thermodynamics._ =G. A. Goodenough, M.E.= 2nd Edn. Revised. 14/- net.

Physics and Chemistry.

_The Measurement of Steady and Fluctuating Temperatures._ =R. Royds, M.Sc., A.M.I.Mech.E.= Demy 8vo. 162 pp.

This book gives a concise account of modern methods of measuring both steady and fluctuating temperatures and of their applications in industrial practice.

_Heat Transmission._ =R. Royds, M.Sc., A.M.I.Mech.E.= Demy 8vo.

Vol. I. BY RADIATION, CONDUCTION, AND CONVECTION.

Vol. II. IN BOILERS, CONDENSERS, AND EVAPORATORS.

_Each volume sold separately._

_Standards and Tests for Reagent Chemicals._ =Benjamin L. Murray.= Member of the American Chemical Society, Chemical Society (London), Society of Chemical Industry, etc. etc. 385 pages. Demy 8vo.

_The Silicates in Chemistry and Commerce._ =Drs. W.= and =D. Asch.= Translated with Critical Notes and some Additions by =A. B. Searle=. 400 + xx pages. Royal 8vo. 21/- net.

CONTENTS.—The Chemistry of Carbon and Silicon. Historical Review of Existing Theories concerning the Constitution of the Alumino-silicates and other Silicates. Critical Examination of Existing Theories concerning Alumino-silicates. A Hypothesis concerning the Bonding of the Atoms in Alumino-silicates and Allied Compounds. The Consequences of the “Hexite-Pentite Theory,” and the Facts: (I.) The Reaction during Double Decomposition; (II.) The Genetic Relationship between the various Alumino-silicates; (III.) The Possibility of a Chemical System of Alumino-silicates; (IV.) The Variable Chemical Behaviour of part of the Aluminium in Kaolin, Nepheline and in the Epidotes; (V.) The Minimum Molecular Weight of Alumino-silicates; (VI.) The Constitution of Andesite; (VII.) The Possibility of Isomerism; (VIII.) Water of Crystallisation and of Constitution: Basic and Acid Water; (IX.) Prognoses; (X.) The Constitution of the Complexes of Molybdenum and Tungsten; (XI.) The Constitution of Clays; (XII.) Ultramarines; (XIII.) A New Theory of Hydraulic Binding Materials and particularly of Portland Cements; (XIV.) A New Theory of the Porcelain Cements as used for Dental Fillings; (XV.) A New Theory of Glass, Glazes and Porcelain; (XVI.) The Hexite-Pentite Theory as a General Theory of Chemical Compounds. The Conversion of the H.P. Theory into a Stereochemical Theory and the combination of the latter with the modern theory of the Structure of Crystals. Summary and Conclusions. Bibliography of references mentioned in Text. Appendix. Formulæ and Analyses. Bibliography of references in Appendix.

_Industrial Chemistry._ A Manual for the Student and Manufacturer. 2nd Edn. Revised and Enlarged. Edited by =Allen Rogers=, in charge of Industrial Chemistry, Pratt Institute, Brooklyn, N.Y.; in collaboration with many Experts. 340 Illustrations. Royal 8vo.

CONTENTS.—General Processes. Materials of Construction. Water for Industrial Purposes. Fluids. Producer Gas. Power Transmission, Boilers, Engines and Motors. Sulphuric Acid. Nitric Acid. Salt and Hydrochloric Acid. Commercial Chemicals. Chlorine and Allied Products. Electro-chemical Industries. Lime, Cement and Plaster. Clay, Bricks and Pottery. Glass. Dutch Process White Lead. Sublimed White Lead. Pigments, Oils and Paints. The Metallurgy of Iron and Steel. Fertilizers. Illuminating Gas. Coal Tar and its Distillation Products. The Petroleum Industry. The Destructive Distillation of Wood. Oils, Fats and Waxes. Lubricating Oils. Soaps, Glycerine and Candles. Laundering. Essential Oils, Synthetic Perfumes and Flavouring Materials. Resins, Oleo-Resins, Gum-Resins and Gums. Varnish. Sugar. Starch, Glucose, Dextrin and Gluten. Brewing and Malting. Wine Making. Distilled Liquors. Textiles. Dyestuffs and their Application. The Art of Paper Making. Explosives. Leather. Vegetable Tanning Materials. Glue and Gelatine. Casein.

_Elements of Industrial Chemistry._ Edited by =Allen Rogers=. An Abridgment of the Manual of Industrial Chemistry prepared especially for Students. Demy 8vo. 520 pages. 117 Illustrations. 16/- net.

CONTENTS.—General Processes. Water for Industrial Purposes. Fuels. Sulphuric Acid. Nitric Acid. Hydrochloric Acid. Elements and Compounds. Electro-chemical Industries. Lime, Cement and Plaster. Ceramic Industries. Pigments and Paints. Iron and Steel. Fertilisers. Organic Chemicals. Illuminating Gas. Coal Tar and Distillation Products. Petroleum. Distillation of Wood. Oils, Fats and Waxes. Soap and Glycerine. Essential Oils. Gums and Resins. Sugar, Starch and Glucose. Brewing. Wine Making and Distilling. Textiles. Dyestuffs. Paper and Cellulose Industries. Explosives. Leather.

_Laboratory Guide of Industrial Chemistry._ =Allen Rogers=, Editor of “A Manual of Industrial Chemistry,” “Elements of Industrial Chemistry,” etc. Demy 8vo. 212 pages. 33 Illustrations. 2nd Revised and Enlarged Edition. 15/- net.

CONTENTS.—General Process. Inorganic Preparations. Organic Preparations. Dyeing of Textile Fibres. Pigments and Lakes. Driers, Varnishes, Paints and Stains. Soap and Allied Products. Leather Manufacture. Wood Fibre, Pulp and Paper. Useful Data.

_The Application of Physico-Chemical Theory to Technical Processes and Manufacturing Methods._ =Dr. R. Kremann.= Translated by =H. E. Potts, M.Sc.= (See p. 51.)

_The Chemistry and Technology of Printing Inks._ =Norman Underwood= and =Thomas V. Sullivan=. Medium 8vo. 12/6 net.

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