A DICTIONARY OF PRACTICAL MEDICINE: Comprising General Pathology, the Nature and Treatment of Diseases, Morbid Structures, and the Disorders especially incidental to Climates, to Sex, and to the different Epochs of Life. By James Copland, M.D., F.R.S. 3 vols. 8vo price £5 11s

HEAT CONSIDERED AS A MODE OF MOTION: A Course of Lectures delivered at the Royal Institution of Great Britain. By John Tyndall, F.R.S., Professor of Natural Philosophy in the Royal Institution. Crown 8vo with Illustrations.

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THE COMPARATIVE ANATOMY AND PHYSIOLOGY OF THE VERTEBRATE ANIMALS. By Richard Owen, F.R.S., D.C.L., Superintendent of the Natural History Department, British Museum, &c. With upwards of 1,200 Wood Engravings. 8vo

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VAN DER HOEVEN’S HANDBOOK OF ZOOLOGY. Translated from the Second Dutch Edition. By the Rev. William Clark, M.D., F.R.S., &c. 2 vols. 8vo. with 24 Plates of Figures, price 60s cloth; or separately, Vol. I. Invertebrata, 30s; and Vol. II. Vertebrata, 30s

THE EARTH AND ITS MECHANISM; an Account of the various Proofs of the Rotation of the Earth; with a Description of the Instruments used in the Experimental Demonstrations; also the Theory of Foucault’s Pendulum and Gyroscope. By Henry Worms, F.R.A.S., F.G.S. 8vo with 31 Woodcuts, price 10s 6d

VOLCANOS, the Character of their Phenomena; their Share in the Structure and Composition of the Surface of the Globe; and their Relation to its Internal Forces; including a Descriptive Catalogue of Volcanos and Volcanic Formations. By G. Poulett Scrope, M.P., F.R.S., F.G.S. Second Edition, with Map and Illustrations. 8vo 15s

A MANUAL OF CHEMISTRY, Descriptive and Theoretical. By William Odling, M.B., F.R.S., Secretary to the Chemical Society, and Professor of Practical Chemistry in Guy’s Hospital. Part I. 8vo 9s

A DICTIONARY OF CHEMISTRY, founded on that of the late Dr. Ure. By Henry Watts, B.A., F.C.S., Editor of the Quarterly Journal of the Chemical Society. To be published in Monthly Parts, uniform with the New Edition of Dr. Ure’S Dictionary of Arts, Manufactures, and Mines, recently completed.