A COURSE OF PRACTICAL ELEMENTARY BIOLOGY. By J. BIDGOOD, B.Sc. With 226 Ill.u.s.trations. Crown 8vo., 4_s._ 6_d._

ELEMENTARY BOTANY, THEORETICAL AND PRACTICAL. By HENRY EDMONDS, B.Sc.

With 342 Ill.u.s.trations. Crown 8vo., 2_s._ 6_d._

STEAM. By WILLIAM RIPPER, Member of the Inst.i.tution of Mechanical Engineers. With 142 Ill.u.s.trations. Crown 8vo., 2_s._ 6_d._

ELEMENTARY PHYSIOGRAPHY. By J. THORNTON, M.A. With 13 Maps and 295 Ill.u.s.trations. With Appendix on Astronomical Instruments and Measurements. Crown 8vo., 2_s._ 6_d._

AGRICULTURE. By HENRY J. WEBB, Ph.D. With 34 Ill.u.s.trations. Crown 8vo., 2_s._ 6_d._

THE LONDON SCIENCE CLa.s.s-BOOKS.

Edited by G. CAREY FOSTER, F.R.S., and by Sir PHILIP MAGNUS, B.Sc., B.A., of the City and Guilds of London Inst.i.tute.

ASTRONOMY. By Sir ROBERT STAWELL BALL, LL.D., F.R.S. With 41 Diagrams.

Fcp. 8vo., 1_s._ 6_d._

MECHANICS. By Sir ROBERT STAWELL BALL, LL.D., F.R.S. With 89 Diagrams.

Fcp. 8vo., 1_s._ 6_d._

THE LAWS OF HEALTH. By W. H. CORFIELD, M.A., M.D., F.R.C.P. With 22 Ill.u.s.trations. Fcp. 8vo., 1_s._ 6_d._

MOLECULAR PHYSICS AND SOUND. By FREDERICK GUTHRIE, F.R.S. With 91 Diagrams. Fcp. 8vo., 1_s._ 6_d._

GEOMETRY, CONGRUENT FIGURES. By O. HENRICI, Ph.D., F.R.S. With 141 Diagrams. Fcp. 8vo., 1_s._ 6_d._

ZOOLOGY OF THE INVERTEBRATE ANIMALS. BY ALEXANDER MACALISTER, M.D.

With 59 Diagrams. Fcp. 8vo., 1_s._ 6_d._

ZOOLOGY OF THE VERTEBRATE ANIMALS. By ALEXANDER MACALISTER, M.D. With 77 Diagrams. Fcp. 8vo., 1_s._ 6_d._

HYDROSTATICS AND PNEUMATICS. By Sir PHILIP MAGNUS, B.Sc., B.A. With 79 Diagrams. Fcp. 8vo., 1_s._ 6_d._ (To be had also _with Answers_, 2_s._) The Worked Solutions of the Problems, 2_s._

BOTANY. Outlines of the Cla.s.sification of Plants. By W. R. MCNAB, M.D.

With 118 Diagrams. Fcp. 8vo., 1_s._ 6_d._

BOTANY. Outlines of Morphology and Physiology. By W. R. MCNAB, M.D.

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THERMODYNAMICS. By RICHARD WORMELL, M.A., D.Sc. With 41 Diagrams. Fcp.

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PRACTICAL ELEMENTARY SCIENCE SERIES.

ELEMENTARY PRACTICAL PHYSIOGRAPHY. (Section I.) By JOHN THORNTON, M.A., Head Master of the Central Higher Grade School, Bolton. With 215 Ill.u.s.trations and a Coloured Spectrum. Crown 8vo., 2_s._ 6_d._

ELEMENTARY PRACTICAL PHYSIOGRAPHY. (Section II.). A Course of Lessons and Experiments in Elementary Science for the Queen's Scholarship Examination. By JOHN THORNTON, M.A. With 98 Ill.u.s.trations and a Series of Questions. Crown 8vo., 2_s._ 6_d._

PRACTICAL DOMESTIC HYGIENE. By J. LANE NOTTER, M.A., M.D., Professor of Hygiene in the Army Medical School, Netley, etc.; and R. H. FIRTH, F.R.C.S., late a.s.sistant Professor of Hygiene in the Army Medical School, Netley, etc. With 83 Ill.u.s.trations. Crown 8vo., 2_s._ 6_d._

PRACTICAL MATHEMATICS. By A. G. CRACKNELL, M.A., B.Sc. Crown 8vo., 3_s._ 6_d._

A PRACTICAL INTRODUCTION TO THE STUDY OF BOTANY: Flowering Plants. By J. BRETLAND FARMER, F.R.S., M.A., Professor of Botany in the Royal College of Science, London. With 121 Ill.u.s.trations. Crown 8vo., 2_s._ 6_d._

ELEMENTARY PRACTICAL CHEMISTRY. By G. S. NEWTH, F.I.C., F.C.S., Demonstrator in the Royal College of Science, London, etc. With 108 Ill.u.s.trations and 254 Experiments. Crown 8vo., 2_s._ 6_d._

ELEMENTARY PRACTICAL PHYSICS. By W. WATSON, B.Sc., a.s.sistant Professor of Physics in the Royal College of Science, London, etc. With 120 Ill.u.s.trations and 193 Exercises. Crown 8vo., 2_s._ 6_d._

ELEMENTARY PRACTICAL ZOOLOGY. By FRANK E. BEDDARD, M.A. Oxon., F.R.S., Prosector to the Zoological Society of London. With 93 Ill.u.s.trations.

Crown 8vo., 2_s._ 6_d._