4

SCIENTIFIC CATALOGUE.

Kelland and Tait.-AN INTRODUCTION TO QUATER NIONS. With numerous Examples. By P. KELLAND, M.A., F.R.S., and P. G. TAIT, M. A., Professors in the department of Mathematics in the University of Edinburgh. Crown 8vo. 75. 6d. Kempe.-HOW TO DRAW A STRAIGHT LINE. A Lecture on Linkages. By A. B. KEMPE, B.A. Illustrated. Crown 8vo. Is. 6d. Merriman.-ELEMENTS OF THE METHOD OF LEAST SQUARES. By MANSFIELD MERRIMAN, Professor of Civil and Mechanical Engineering, Lehigh University, Bethlehem, Penn., U.S.A. Crown 8vo. 7s. 6d.

Morgan.-A COLLECTION OF PROBLEMS AND EXAMPLES IN MATHEMATICS. With Answers. By H. A. MORGAN, M. A., Sadlerian and Mathematical Lecturer of Jesus College, Cambridge. Crown 8vo. cloth. 6s. 6d.

Newton's Principia.-4to. cloth. 31s. 6d.

It is a sufficient guarantee of the reliability of this complete edition of
Newton's Principia that it has been printed for and under the care
of Professor Sir William Thomson and Professor Blackburn, of
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Parkinson.-A TREATISE ON OPTICS. By S. PARKIN-
SON, D.D., F.R.S., Fellow and Tutor of St. John's College,
Cambridge. Third Edition, revised and enlarged. Crown 8vo.
cloth. IOS. 6d.

Phear.-ELEMENTARY HYDROSTATICS. With Numerous
Examples. By J. B. PHEAR, M. A., Fellow and late Assistant Tutor
of Clare Coll. Cambridge. Fourth Edition. Cr. 8vo. cloth. 5s. 6d.
Pirrie. LESSONS ON RIGID DYNAMICS. By the Rev. G.
PIRRIE, M. A., Fellow and Tutor of Queen's College, Cambridge.
Crown 8vo. 6s.

Puckle.-AN ELEMENTARY TREATISE ON CONIC SEC-
TIONS AND ALGEBRAIC GEOMETRY. With numerous
Examples and Hints for their Solution. By G. HALE PUCKLE,
M.A. Fouth Edition, enlarged. Crown 8vo. 7s. 6d.
Rayleigh. THE THEORY OF SOUND. BY LORD Rayleigh,
F.R.S., formerly Fellow of Trinity College, Cambridge. 8vo.
Vol. 1. 12s. 6d. ; Vol. II. 12s. 6d. [Vol. III. in preparation.
Reuleaux.-THE KINEMATICS OF MACHINERY. Out-
lines of a Theory of Machines.
Translated and edited by A. B. W.
Civil and Mechanical Engineering,
With 450 Illustrations. Royal 8vo.

By Professor F. REULEAUX.
KENNEDY, C.E., Professor of
University College, London.

205.

Routh.-Works by EDWARD JOHN ROUTH, M.A., F.R.S., late Fellow and Assistant Tutor of St. Peter's College, Cambridge; Examiner in the University of London :

AN ELEMENTARY TREATISE ON THE DYNAMICS OF THE SYSTEM OF RIGID BODIES. With numerous Examples. Third Edition, enlarged. 8vo. 2IS.

STABILITY OF A GIVEN STATE OF MOTION, PARTICULARLY STEADY MOTION. The Adams' Prize Essay for 1877. 8vo. 8s. 6d.

Tait and Steele.-DYNAMICS OF A PARTICLE.

With

numerous Examples. By Professor TAIT and Mr. STEELE. Fourth Edition, revised. Crown 8vo.

I25.

Thomson.-PAPERS ON ELECTROSTATICS AND MAGNETISM. By Professor SIR WILLIAM THOMSON, F.R.S. 8vo. 18s.

Todhunter.-Works by I. TODHUNTER, M.A., F.R.S., of St. John's College, Cambridge :

"Mr. Todhunter is chiefly known to students of mathematics as the
author of a series of admirable mathematical text-books, which
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from mistakes, typographical or other."-Saturday Review.

A TREATISE ON SPHERICAL TRIGONOMETRY.
Edition, enlarged. Crown 8vo. cloth. 4s. 6d.

New

PLANE CO-ORDINATE GEOMETRY, as applied to the Straight
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A TREATISE ON THE DIFFERENTIAL CALCULUS.
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A TREATISE ON THE INTEGRAL CALCULUS AND ITS
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EXAMPLES OF ANALYTICAL GEOMETRY OF THREE
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A TREATISE ON ANALYTICAL STATICS. With numerous
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cloth. IOS. 6d.

A HISTORY OF THE MATHEMATICAL THEORY OF PROBABILITY, from the Time of Pascal to that of Laplace. 8vo. 18s.

RESEARCHES IN THE CALCULUS OF VARIATIONS, Principally on the Theory of Discontinuous Solutions: An Essay to which the Adams' Prize was awarded in the University of Cambridge in 1871. 8vo. 6s.

Todhunter-continued.

245.

A HISTORY OF THE MATHEMATICAL THEORIES OF
ATTRACTION, and the Figure of the Earth, from the time of
Newton to that of Laplace. Two vols. 8vo.
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highest practical utility."-Athenæum.

AN ELEMENTARY TREATISE ON LAPLACE'S, LAME'S,
AND BESSEL'S FUNCTIONS. Crown 8vo.
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Wilson (W. P.)—A TREATISE ON DYNAMICS. By W. P. WILSON, M. A., Fellow of St. John's College, Cambridge, and Professor of Mathematics in Queen's College, Belfast. 8vo. 9s. 6d.

Wolstenholme.-MATHEMATICAL PROBLEMS, on Subjects included in the First and Second Divisions of the Schedule of Subjects for the Cambridge Mathematical Tripos Examination. Devised and arranged by JOSEPH WOLSTENHOLME, late Fellow of Christ's College, sometime Fellow of St. John's College, and Professor of Mathematics in the Royal Indian Engineering College. New Edition, greatly enlarged. 8vo. 18s.

Young. SIMPLE PRACTICAL METHODS OF CALCU LATING STRAINS ON GIRDERS, ARCHES, AND TRUSSES. With a Supplementary Essay on Economy in suspen. sion Bridges. By E. W. YOUNG, Associate of King's College, London, and Member of the Institution of Civil Engineers. 8vo. 7s. 6d.

PHYSICAL SCIENCE.

7

PHYSICAL SCIENCE.

With Illustrations.
New Edition.

Airy (G. B.)-POPULAR ASTRONOMY. By Sir G. B. AIRY, K. C.B., Astronomer Royal. 18mo. cloth. 45. 6d. Bastian.-Works by H. CHARLTON BASTIAN, M.D., F.R.S., Professor of Pathological Anatomy in University College, London, &c.:

THE BEGINNINGS OF LIFE: Being some Account of the Nature, Modes of Origin, and Transformations of Lower Organisms. In Two Volumes. With upwards of 100 Illustrations. Crown 8vo. 28s. "It is a book that cannot be ignored, and must inevitably lead to renewed discussions and repeated observations, and through these to the establishment of truth."-A. R. Wallace in Nature.

EVOLUTION AND THE ORIGIN OF LIFE. Crown 8vo. 6s. 6d.

"Abounds in information of interest to the student of biological science." -Daily News.

Blake.-ASTRONOMICAL MYTHS. Based on Flammarion's "The Heavens." By John F. BLAKE. With numerous Illustrations. Crown 8vo.

9s.

Blanford (H. F.)-RUDIMENTS OF PHYSICAL GEOGRAPHY FOR THE USE OF INDIAN SCHOOLS. By H. F. BLANFORD, F.G.S. With numerous Illustrations and Glossary of Technical Terms employed. New Edition. Globe 8vo. 2s. 6d.

Blanford (W. T.)-GEOLOGY AND ZOOLOGY OF ABYSSINIA. By W. T. BLANFORD. 8vo. 21s.

Bosanquet.-AN ELEMENTARY TREATISE ON MUSICAL INTERVALS AND TEMPERAMENT. With an Account of an Enharmonic Harmonium exhibited in the Loan Collection of Scientific Instruments, South Kensington, 1876; also of an Enharmonic Organ exhibited to the Musical Association of London, May, 1875. By R. H. Bosanquet, Fellow of St. John's College, Oxford. 8vo. 6s.

Coal ITS HISTORY AND ITS USES. By Professors GREEN, MIALL, THORPE, RÜCKER, and MARSHALL, of the Yorkshire College, Leeds. With Illustrations. 8vo. 12s. 6d.

"It furnishes a very comprehensive treatise on the whole subject of Coal from the geological, chemical, mechanical, and industrial points of view, concluding with a chapter on the important topic known as the Coal Question.""- Daily News.

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SCIENTIFIC CATALOGUE.

Cooke (Josiah P., Jun.)-FIRST PRINCIPLES OF CHEMICAL PHILOSOPHY. By JOSIAH P. COOKE, Jun., Ervine Professor of Chemistry and Mineralogy in Harvard College. Third Edition, revised and corrected. Crown 8vo. 12s.

Cooke (M. C.)-HANDBOOK OF BRITISH FUNGI, with full descriptions of all the Species, and Illustrations of the Genera. By M. C. COOKE, M.A. Two vols. crown 8vo. 245. "Will maintain its place as the standard English book, on the subject of which it treats, for many years to come.”—Standard. Dawkins.-CAVE-HUNTING: Researches on the Evidence of Caves respecting the Early Inhabitants of Europe. By W. BOYD DAWKINS, F.R.S., &c., Professor of Geology at Owens College, Manchester. With Coloured Plate and Woodcuts. 8vo. 21S. "The mass of information he has brought together, with the judicious use he has made of his materials, will be found to invest his book with much of new and singular value."-Saturday Review.

Dawson (J. W.)-ACADIAN GEOLOGY. The Geologic Structure, Organic Remains, and Mineral Resources of Nova Scotia, New Brunswick, and Prince Edward Island. By JOHN WILLIAM DAWSON, M.A., LL.D., F.R.S., F.G.S., Principal and Vice-Chancellor of M'Gill College and University, Montreal, &c. With a Geological Map and numerous Illustrations. Third Edition, with Supplement. 8vo. 21s. Supplement, separately, 2s. 6d. "The book will doubtless find a place in the library, not only of the scientific geologist, but also of all who are desirous of the industrial progress and commercial prosperity of the Acadian provinces."-Mining Journal.

Fleischer.-A SYSTEM OF VOLUMETRIC ANALYSIS. By Dr. E. FLEISCHER. Translated from the Second German Edition by M. M. Pattison Muir, with Notes and Additions. Illustrated. Crown 8vo. 7s. 6d.

Forbes.-THE TRANSIT OF VENUS. By George Forbes, B.A., Professor of Natural Philosophy in the Andersonian University of Glasgow. With numerous Illustrations. Crown 8vo. 35. 6d. Foster and Balfour.-ELEMENTS OF EMBRYOLOGY By MICHAEL FOSTER, M.D., F.R.S., and F. M. BALFOUR, M.A., Fellow of Trinity College, Cambridge. With numerous Illustrations. Part I. Crown 8vo. 7s. 6d.

Galton.-Works by FRANCIS GALTON, F.R.S.:

METEOROGRAPHICA, or Methods of Mapping the Weather. Illustrated by upwards of 600 Printed Lithographic Diagrams. 4to. 9s.