Ure's Dictionary of Arts, Manufactures, and Mines. Seventh Edition, re-written and enlarged by R. Hunt, F.R.S. assisted by numerous Contributors. With 2,604 Woodcuts. 4 vols. medium 8vo. £7. 7s.

Cresy's Encyclopædia of Civil Engineering, Historical, Theoretical, and Practical. With above 3,000 Woodcuts, 8vo. 25s.

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Ville on Artificial Manures, their Chemical Selection and Scientific Application to Agriculture. Translated and edited by W. Crookes, F.R.S. With 31 Plates. 8vo. 21s.

Mitchell's Manual of Practical Assaying. Fifth Edition, revised, with the Recent Discoveries incorporated, by W. Crookes, F.R.S. Crown 8vo. Woodcuts, 31s. 6d.

The Art of Perfumery, and the Methods of Obtaining the Odours of Plants; the Growth and general Flower Farm System of Raising Fragrant Herbs; with Instructions for the Manufacture of Perfumes &c. By G.W.S. Piesse, Ph. D. F.C.S. Fourth Edition, with 96 Woodcuts, Square crown 8vo. 21s.

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