THE LONDON SCIENCE CLASS-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 Institute.

ASTRONOMY.

By Sir ROBERT STA-
WELL BALL, LL.D., F.R.S With
41 Diagrams. Fcp. 8vo., Is. 6d.
MECHANICS. By SIR ROBERT STA-
WELL BALL, LL.D., F.R.S. With
89 Diagrams. Fcp. 8vo., Is. 6d.
THE LAWS OF HEALTH. By W.
H. CORFIELD, M A., M.D., F.R.C.P.
With 22 Illustrations. Fcp. 8vo., Is. 6d.
MOLECULAR PHYSICS AND
SOUND. BY FREDERICK GUTHRIE,
F.R.S. With 91 Diagrams. Fcp.
8vo., Is. 6d.
GEOMETRY, CONGRUENT FIG-

URES. By O. HENRICI, Ph.D.,
F.R.S. With 141 Diagrams. Fcp.
8vo., Is. 6d.
ZOOLOGY OF THE INVERTE-
BRATE ANIMALS. By ALEXANDER
MACALISTER, M.D. With 77 Dia-
grams. Fcp. 8vo., Is. 6d.

ZOOLOGY OF THE VERTEBRATE
ANIMALS. By ALEXANDER MAC-
ALISTER, M.D. With 59 Diagrams.
Fcp. 8vo., Is. 6d.

25.

HYDROSTATICS AND PNEUMA-
TICS. By Sir PHILIP MAGNUS,
B.Sc., B.A. With 79 Diagrams.
Fcp. 8vo., Is. 6d. (To be had also
with Answers, 25.) The Worked
Solutions of the Problems.
BOTANY. Outlines of the Classification
of Plants. By W. R. MCNAB, M.D.
With 118 Diagrams. Fcp. 8vo., Is. 6d.
BOTANY. Outlines of Morphology and
Physiology. By W. R. MCNAB,
M.D. With 42 Diagrams. Fcp.

8vo., Is. 6d.
THERMODYNAMICS.
WORMELL, M.A., D.Sc.
Diagrams. Fcp. 8vo., Is. 6d.

By RICHARD
With 41

PRACTICAL ELEMENTARY SCIENCE SERIES.

With 215

A

SOUND, LIGHT, AND HEAT.
Stage By JOSEPH S. DEXTER.
With 152 Illustrations. Crown 8vo.,
2s. 6d.

ELEMENTARY PRACTICAL PHY-ELEMENTARY PRACTICAL
SIOGRAPHY. (Section I.) By
JOHN THORNTON, M.A.
Illustrations and a Coloured Spec-
trum. Crown 8vo., 2s. 6d.
ELEMENTARY PRACTICAL PHY-
SIOGRAPHY. (Section II.).
Course of Lessons and Experiments
in Elementary Science for the King's
Scholarship Examination. By JOHN
THORNTON, M. A. With 98 Illustra-
tions and a Series of Questions.
Crown 8vo., 2s. 6d.
PRACTICAL DOMESTIC HYGIENE.
Stage I. By J. LANE NOTTER, M. A.,
M.D., and R. H. FIRTH, F.R.C.S.
With 83 Illustrations. Crown 8vo.,
2s. 6d.

PRACTICAL MATHEMATICS. Stage
I. By A. G. CRACKNELL, M.A.,
B.Sc. Crown 8vo., 3s. 6d.
ELEMENTARY PRACTICAL CHE-
MISTRY. Stage I. By G. S.
NEWTH, F.I.C., F.C.S. With 108
Illustrations and 254 Experiments.
Crown 8vo., 2s. 6d.

ELEMENTARY PRACTICAL PHY-
SICS. Stage I. By W. WATSON,
D.Sc. With 120 Illustrations and 193
Exercises. Crown 8vo., 2s. 6d.

ELEMENTARY BIOLOGY. By JOHN
THORNTON, M.A. With 108 Illus-
trations. Crown 8vo., 35. 6d.