The Elements of Botany for Families and Schools.

Eleventh Edition, revised by Thomas Moore, F.L.S.

Fcp. 8vo. with 154 Woodcuts, 2s. 6d.

The Rose Amateur’s Guide.

By Thomas Rivers.

Tenth Edition. Fcp. 8vo. 4s.

On the Sensations of Tone, as a Physiological Basis for the Theory of Music.

By H. Helmholtz, Professor of Physiology in the University of Berlin.

Translated by A.J. Ellis, F.R.S.

8vo. 36s.