CHEMISTRY.

ADDYMAN-Agricultural Analysis. A Manual of Quantitative Analysis for Students of Agriculture. By FRANK T. ADDYMAN, B.Sc. (Lond.), F.I.C. With 49 Illustrations. Crown 8vo. 5s.net. CARNEGIE Law and Theory in Chemistry: a Companion Book for Students. By DOUGLAS CARNEGIE, sometime Scholar and Demonstrator in Chemistry of Gonville and Caius, Cambridge. Cr. 8vo. COLEMAN & ADDYMAN-Practical Agricultural Chemistry. Elementary Students, adapted for use in Agricultural Classes and Colleges. By J. BERNARD COLEMAN, A.R.C.Sc., F.I.C., and FRANK T. ADDYMAN, B.Sc. (Lond.) F.I.C. With 24 Illustrations. Crown 8vo. 1s. 6d. net.

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CROOKES-Select Methods in Chemical Analysis, chiefly Inorganic.
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EARL-The Elements of Laboratory Work: a Course of Natural Science.
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FURNEAUX-Elementary Chemistry, Inorganic and Organic. By W.
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HJELT-Principles of General Organic Chemistry. By Professor E.
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MENDELEEFF-The Principles of Chemistry. By D. MENDELÉEFF, Professor of Chemistry in the University of St. Petersburg. Translated by GEORGE KAMENSKY, A.R.S.M., of the Imperial Mint, St. Petersburg, and edited by A. J. GREENAWAY, F.I.C., Sub-Editor of the Journal of the Chemical Society. With 97 Illustrations. 2 vols. 8vo. 36.

MEYER-Outlines of Theoretical Chemistry. By LOTHAR MEYER, Professor of Chemistry in the University of Tübingen. Translated by Professors P. PHILLIPS BEDSON, D.Sc., and W. CARLETON WILLIAMS, B.Sc. 8vo.

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MILLER—Introduction to the Study of Inorganic Chemistry. By WILLIAM ALLEN MILLER, M.D., LL.D., F.R.S. With 71 Woodcuts. Fcp. 8vo. 3s. 6d.

MUIR-Works by M. M. PATTISON MUIR, M.A., Fellow of Gonville and Caius College, Cambridge.

The Alchemical Essence and the Chemical Element: an Episode in the Quest of the Unchanging. 8vo. 48. 6d.

Tables and Directions for the Qualitative Chemical Analysis of Moderately Complex Mixtures of Salts. Crown 8vo.

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NEWTH-Works by G. S. NEWTH, Royal College of Science, South Kensington.

Chemical Lecture Experiments. With 224 Diagrams. Crown 8vo. 10s. 6d.

A Text-Book of Inorganic Chemistry. With 146 Illustrations. Crown 8vo. 6s. 6d.

ODLING-A Course of Practical Chemistry, arranged for the Use of Medical Students, with express reference to the Three Months' Summer Practice. By WILLIAM ODLING, M.A. With 71 Woodcuts. Crown

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OSTWALD-Solutions. By W. OSTWALD, Professor of Chemistry in the University of Leipzig. Being the Fourth Book, with some Additions, of the Second Edition of Ostwald's 'Lehrbuch der Allgemeinen Chemie'. Translated by M. M. PATTISON MUIR, Fellow of Gonville and Caius College, Cambridge. 8vo. 10s. 6d.

PAYEN-Industrial Chemistry. A Manual for use n Technical Colleges and Schools, based upon a Translation of Stohmann and Engler's German Edition of PAYEN'S 'Précis de Chimie Industrielle'. Edited by B. H. PAUL, Ph.D. With 698 Woodcuts. 8vo. 42s.

REYNOLDS-Experimental Chemistry for Junior Students. By J. EMERSON REYNOLDS, M.D., F.R.S., Professor of Chemistry, University of Dublin; Examiner in Chemistry, University of London. Fcp. 8vo. with numerous Woodcuts.

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THORPE A Dictionary of Applied Chemistry. By T. E. THORPE, B.Sc. (Vict.), Ph.D., F.R.S., Treas. C.S., Professor of Chemistry in the Royal College of Science, South Kensington. Assisted by Eminent Contributors. 3 vols. 8vo. Vols. I. & II. 42s. each. Vol. III.

Quantitative Chemical Analysis.
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THORPE and MUIR-Qualitative Chemical Analysis and Laboratory Practice. By T. E. THORPE, Ph.D., D.Sc., F.R.S., and M. M. PATTISON MUIR, M.A. With Plate of Spectra and 57 Woodcuts. Fcp. 8vo. 3s. 6d.

TILDEN-Works by WILLIAM A. TILDEN, D.Sc. (Lond.), F.C.S., Professor of Chemistry at the Royal College of Science.

Introduction to the Study of Chemical Philosophy. The Principles of Theoretical and Systematic Chemistry. With 5 Woodcuts. With or without the ANSWERS of Problems. Fcp. 8vo. 4s. 6d.

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WATTS' Dictionary of Chemistry. Revised and entirely Rewritten by H. FORSTER MORLEY, M.A., D.Sc., Fellow of, and lately AssistantProfessor of Chemistry in, University College, London; and M. M. PATTISON MUIR, M.A., F.R.S.E., Fellow, and Prælector in Chemistry, of Gonville and Caius College, Cambridge. Assisted by Eminent Contributors. 4 vols. 8vo. Vols. I. & II., 42s. each. Vol. III., 50s. Vol. IV., 63s.

WHITELEY-Works by R. LLOYD WHITELEY, F.I.C., Principal of the Municipal Science School, West Bromwich.

Chemical Calculations, with Explanatory Notes, Problems and Answers, specially adapted for use in Colleges and Science Schools. With a Preface by Professor F. CLOWES, D.Sc. (Lond.), F.I.C. Crown

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Organic Chemistry. The Fatty Compounds. With 45 Illustrations. Crown 8vo. 3s. 6d.

PHYSICS.

COOK-Physics. (Specially adapted for Indian Schools and Students.) By J. Cook, M.A., Principal, Central College, Bangalore. With Examination Questions and 206 Illustrations. Crown 8vo. 2s. 6d.

EARL-The Elements of Laboratory Work: a Course of Natural Science. By A. G. EARL, M.A., F.C.S. With 57 Diagrams and numerous Exercises, etc. Crown 8vo. 4s. 6d.

GANOT--Works by Professor GANOT.
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Elementary Treatise on Physics, Experimental and Applied. With 9 Coloured Plates and 1028 Woodcuts. Crown 8vo. 15s.

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Contents-Vol. I.-The Relation of Natural Science to Science in General-Goethe's Scientific Researches--The Physiological Causes of Har mony in Music-Ice and Glaciers-The Inter-action of the Natural Forces The Recent Progress of the Theory of Vision-The Conservation of ForceThe Aim and Progress of Physical Science.

Vol. II.--Gustav Magnus. In Memoriam-The Origin and Significance of Geometrical Axioms--The Relations of Optics to Painting--The Origin of the Planetary System-Thought in Medicine-Academic Freedom in German Universities-Hermann von Helmholtz. An Autobiographical Sketch.

HOPKINS-Preparatory Physics: a Short Course in the Laboratory. By WILLIAM J. HOPKINS, Professor of Physics in the Drexel Institute, Philadelphia. With numerous Diagrams. 8vo. 58.

WORTHINGTON-A First Course of Physical Laboratory Practice. Containing 264 Experiments. By A. M. WORTHINGTON, F.R.S., M.A. With Illustrations. Crown 8vo. 4s. 6d.

WRIGHT-Elementary Physics. By MARK R. WRIGHT, Professor of Normal Education, Durham College of Science. With 242 Illustr ations. Crown 8vo. 2s. 6d.

MECHANICS AND MECHANISM.

BALL-A Class-Book of Mechanics. By Sir R. S. BALL, LL.D. 89 Diagrams. Fcp. 8vo. 1s. 6d.

GOODEVE-Works by T. M. GOODEVE, M.A., Professor of Mechanics at the Normal School of Science, and the Royal School of Mines.

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The Elements of Mechanism. With 342 Woodcuts. Crown 8vo.

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GRIEVE-Lessons in Elementary Mechanics. By W. H. GRIEVE, P.S.A., late Engineer R.N., Science Demonstrator for the London School Board, &c. Stage 1. With 165 Illustrations and a large number of Examples. Fcp. 8vo. 1s. 6d. Stage 2. With 122 Illustrations. Fcp. 8vo. 1s. 6d. Stage 3. With 103 Illustrations. Fcp. 8vo 1s. 6d.

MAGNUS-Lessons in Elementary Mechanics. Introductory to the Study of Physical Science. Designed for the Use of Schools, and of Candidates for the London Matriculation and other Examinations. With numerous Exercises, Examples, and Examination Questions. With Answers, and 131 Woodcuts. By Sir PHILIP MAGNUS, B.Sc., B.A. Fcp. 8vo. 3s. 6d. Key for the use of Teachers only, price 5s. 3 d. net, post free, from the publishers only.

TAYLOR—Works by J. E. TAYLOR, M.A., B.Sc., Central Schools, Sheffield.

Theoretical Mechanics, including Hydrostatics and Pneumatics. With 175 Diagrams and Illustrations, and 522 Examination Questions and Answers. Crown 8vo. 2s. 6d.

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THORNTON-Theoretical Mechanics: Solids. Including Kinematics, Statics, and Kinetics. By ARTHUR THORNTON, M.A., F.R.A.S., late Scholar of Christ's College, Cambridge; Senior Science Master, Bradford Grammar School. With 220 Illustrations, 130 Worked Examples, and over 900 Examples from Examination Papers, &c. Crown 8vo. 4s. 6d.