Heat a Mode of Motion. Crown 8vo. 12s.

Sound. With 204 Woodcuts. Crown 8vo. 10s. 6d.

Essays on the Floating-Matter of the Air in relation to Putrefaction and Infection. With 24 Woodcuts. Crown 8vo. 7s. 6d.

Lectures on Light, delivered in America in 1872 and 1873. With Portrait, Plate, and Diagrams. Crown 8vo. 7s. 6d.

Lessons in Electricity at the Royal Institution, 1875-76. With 58 Woodcuts. Crown 8vo. 2s. 6d.

Notes of a Course of Seven Lectures on Electrical Phenomena and Theories, delivered at the Royal Institution. Crown 8vo. 1s. sewed, 1s. 6d. cloth.

Notes of a Course of Nine Lectures on Light, delivered at the Royal Institution. Crown 8vo. 1s. sewed, 1s. 6d. cloth.

Faraday as a Discoverer. Fcp. 8vo. 3s. 6d.

URE.A Dictionary of Arts, Manufactures, and Mines. By Dr. Ure. Seventh Edition, re-written and enlarged by R. Hunt, F.R.S. With 2,064 Woodcuts. 4 vols. medium 8vo. £7. 7s.

VERNEY.Chess Eccentricities. Including Four-handed Chess, Chess for Three, Six, or Eight Players, Round Chess for Two, Three, or Four Players, and several different ways of Playing Chess for Two Players. By Major George Hope Verney. Crown 8vo. 10s. 6d.