CYCLOPÆDIA

OF

THE NATURAL SCIENCES.

New Scientific Works.

CHEMICAL SCIENCE.

CYCLOPEDIA OF CHEMISTRY, PRACTICAL AND THEORETICAL, with its Applications to Mineralogy,
Physiology, and the Arts. By R. D. THOMSON, M.D., F.R.S., F.C.S., Professor of Chemistry at
St. Thomas's Hospital College, London. With numerous Illustrations, post 8vo, 12s. 6d., cloth.

"A practical publication, in the highest degree valuable."-Mining Journal.
"The best compendium of Chemistry that we have yet seen."-Lancet
"Its completeness and correctness recommend this Cyclopædia.”—Athenæum,

GEOGRAPHICAL SCIENCE.

CYCLOPÆDIA OF POLITICAL AND PHYSICAL GEOGRAPHY, forming a COMPLETE GAZETTEER of the WORLD, with Pronunciation, and numerous Illustrations. By JAMES BRYCE, A.M., F.G.S. Post 8vo, 12s. 6d., cloth.

"The simplest, handiest, and best of portable one-volume Gazetteers "— Examiner.
"A sufficient and accurate book of Geographical reference."—Literary Gazette.
"As a work of reference this book is very valuable.”—Critic.

PHYSICAL SCIENCES.

CYCLOPEDIA OF THE PHYSICAL SCIENCES, comprising Acoustics, Astronomy, Dynamics, Electricity, Heat, Hydrodynamics, Magnetism, Philosophy of Mathematics, Meteorology, Optics, Pneumatics, Statics, &c. By J. P. NICHOL, LL.D., Professor of Practical Astronomy in the University of Glasgow, with the assistance of Eminent Scientific Men. Maps, Engravings, and Woodcuts. 8vo, 18s., cl. "It takes its place at once, and of course among standard books."—Athenæum. "Well printed and illustrated, and most ably edited."- Examiner.

"A most useful book of reference, deserving high commendation."- Westminster Review.

Α

CYCLOPÆDIA

OF THE

NATURAL SCIENCES.

BY

WILLIAM BAIRD, M.D., F.L.S.,

BRITISH MUSEUM.

MAP AND NUMEROUS ILLUSTRATIONS.

LONDON AND GLASGOW:

RICHARD GRIFFIN AND COMPANY,
Publishers to the University of Glasgow.