LECTURES ON POLARISED LIGHT,

Delivered before the Pharmaceutical Society, and in the Medical School of the London Hospital. 8vo. illustrated by above 50 Woodcuts, 5s. 6d. cloth.

L. E. L.-THE POETICAL WORKS OF LETITIA ELIZABETH LANDON. New Edition (1839), 4 vols. fcp. 8vo. with Illustrations by Howard, &c. 28s. cloth lettered; or handsomely bound in morocco, with gilt edges, £2. 4s.

The following may be had separately :-
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LEE.-TAXIDERMY;

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Or, the Art of Collecting, Preparing, and Mounting Objects of Natural History. For the use of Museums and Travellers. By Mrs. R. LEE (formerly Mrs. T. E. Bowdich), Author of "Memoirs of Cuvier," &c. 6th Edition, improved, with an account of a Visit to Walton Hall, and Mr. Waterton's method of Preserving Animals. Fcp. 8vo. with Wood Engravings, 7s. cloth.

LEE.-ELEMENTS OF NATURAL HISTORY,

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LIFE OF A TRAVELLING PHYSICIAN,

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"Really a very clever book, full of amusing and interesting matter, and giving unequivocal evidence of the author's talent for observation, both of men and manners, as well as a happy facility of graphically delineating what he sees."-BRITISH AND FOREIGN MEDICAL REVIEW.

LINDLEY.-INTRODUCTION TO BOTANY.

By Prof. J. LINDLEY, Ph.D. F.R.S. L.S. &c. 3d Edition (1839), with Corrections and considerable Additions, 1 large vol. 8vo. pp. 606, with Six Plates and numerous Woodcuts, 18s. cloth.

LINDLEY.-A NATURAL SYSTEM OF BOTANY;

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LINDLEY.-FLORA MEDICA;

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LINDLEY.-A SYNOPSIS OF THE BRITISH FLORA,

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LLOYD.-A TREATISE ON LIGHT AND VISION.

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LOUDON (MRS.)-THE LADY'S COUNTRY COMPANION: Or, How to Enjoy a Country Life Rationally. By Mrs. LOUDON, Author of "Gardening for Ladies," &c.

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LOUDON. AN ENCYCLOPEDIA OF TREES AND SHRUBS;

being the "Arboretum et Fruticetum Britannicum" abridged: containing the Hardy Trees and Shrubs of Great Britain, Native and Foreign, Scientifically and Popularly Described; with their Propagation, Culture, and Uses in the Arts; and with Engravings of nearly all the Species. Adapted for the use of Nurserymen, Gardeners, and Foresters. By J. C. LOUDON, F.L.S. &c. In 8vo. pp. 1234, with upwards of 2000 Engravings on Wood, £2. 10s. bound in cloth.

The Original Work may be had in 8 vols. 8vo. with above 400 Octavo Plates of Trees, and upwards of 2500 Woodcuts, 10, cloth.

LOUDON. AN ENCYCLOPEDIA OF GARDENING;

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LOUDON. AN ENCYCLOPEDIA OF AGRICULTURE;

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LOUDON. AN ENCYCLOPEDIA OF PLANTS;

Including all the Plants which are now found in, or have been introduced into, Great Britain; giving their Natural History, accompanied by such descriptions, engraved figures, and elementary details, as may enable a beginner, who is a mere English reader, to discover the name of every Plant which he may find in flower, and acquire all the information respecting it which is useful and interesting. The Specific Characters by an Eminent Botanist; the Drawings by J. D. C. Sowerby, FL.S. A New Edition, with New Supplement, comprising every desirable particular respecting all the Plants originated in, or introduced into, Britain between the first publication of the work, in 1829, and January 1840: with a new General Index to the whole work. Edited by J. C. LOUDON, prepared by W. H. Baxter, Jun. and revised by George Don, F.L.S.; and 800 new Figures of Plants on Wood, from Drawings by J. D. C. Sowerby, F.L.S. One very large vol. 8vo. with nearly 10,000 Wood Engravings, pp. 1354, 3. 13s. 6d.

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LOUDON. AN ENCYCLOPÆDIA OF COTTAGE, FARM, AND

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LOUDON.-HORTUS BRITANNICUS:

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LOUDON. THE -THE SUBURBAN GARDENER AND VILLA COMPANION: comprising the Choice of a Villa or Suburban Residence, or of a situation on which to form one; the Arrangement and Furnishing of the House; and the Laying-out, Planting, and general Management of the Garden and Grounds; the whole adapted for grounds from one perch to fifty acres and upwards in extent; intended for the instruction of those who know little of Gardening or Rural Affairs, and more particularly for the use of Ladies. By J. C. LOUDON, F.L.S. &c. 1 vol. 8vo. with above 300 Wood Engravings, 20s. cloth.

LOUDON. HORTUS LIGNOSIS LONDINENSIS;

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LOUDON.-ON THE LAYING-OUT, PLANTING,

AND

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LOW. THE BREEDS OF THE DOMESTICATED ANIMALS
Of Great Britain Described. By DAVID LOW, Esq. F.R.S.E. Professor of Agriculture in the
University of Edinburgh; Member of the Royal Academy of Agriculture of Sweden; Corre-
sponding Member of the Conseil Royal d'Agriculture de France, of the Société Royale et
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LOW. AN INQUIRY INTO THE NATURE OF THE SIMPLE
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LOW.-ELEMENTS OF PRACTICAL AGRICULTURE;

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MACKINTOSH (SIR JAMES).-SIR JAMES MACKINTOSH'S
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MACLEOD.-ON RHEUMATISM,

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MARCET.-CONVERSATIONS ON NATURAL PHILOSOPHY;

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Of the General Properties of Bodies; the Attraction of Gravity; the Laws of Motion; Compound Motion; the Mechanical Powers; Astronomy; Causes of the Earth's Motion; the Planets; the Earth; the Moon; Hydrostatics; the Mechanical Properties of Fluids; of Springs, Fountains, &c.; Pneumatics; the Mechanical Properties of Air; on Wind and Sound; Optics; the Visual Angle and the Reflection of Mirrors; on Refraction and Colours; on the Structure of the Eye, and Optical Instruments.

MARCET.-CONVERSATIONS ON POLITICAL ECONOMY;

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Introduction; on Property; the Division of Labour; on Capital; on Wages and Population; on the Condition of the Poor; on Value and Price; on Income; Income from Landed Property; Income from the Cultivation of Land; Income from Capital lent; on Money; on Commerce; on Foreign Trade; on Expenditure and Consumption.

MARCET. CONVERSATIONS ON VEGETABLE PHYSIOLOGY; comprehending the Elements of Botany, with their application to Agriculture. 3d Edition (1839), 1 vol. fcp. 8vo. pp. 474, with 4 Plates, 9s. cloth. Introduction; on Roots; on Stems; on Leaves; on Sap; on Cambium and the peculiar Juices of Plants; on the Action of Light and Heat on Plants; on the Naturalization of Plants; on the Action of the Atmosphere on Plants; on the Action of Water on Plants; on the Artificial Mode of Watering Plants; on the Action of the Soil on Plants; on the Propagation of Plants by Subdivision; on Grafting; on the Multiplication of Plants by Seed; the Flower; on Compound Flowers; on Fruit; on the Seed; on the Classification of Plants; on Artificial Systems; on the Natural System; Botanical Geography; the Influence of Culture on Vegetation; on the Degeneration and Diseases of Plants; on the Cultivation of Trees; on the Cultivation of Plants which produce Fermented Liquors; on the Cultivation of Grasses, Tuberous Roots, and Grain; on Oleaginous Plants and Culinary Vegetables.

MARCET.-CONVERSATIONS FOR CHILDREN;

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MARCET. THE GAME OF GRAMMAR,

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MARRIAGE GIFT.

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MAUNDER. THE TREASURY OF HISTORY;

Comprising a General Introductory Outline of Universal History, Ancient and Modern, and a Series of separate Histories of every principal Nation that exists; their Rise, Progress, and Present Condition, the Moral and Social Character of their respective inhabitants, their Religion, Manners, and Customs, &c. By SAMUEL MAUNDER. 10s.cloth; bound in roan, 12s. "In the Treasury of History' we see the same utility of purpose, the same diligence and pains-taking with the materials, the same skill and talent in putting them together, and, in fine, the same general excellence, which have marked all Mr. Maunder's productions. The arrangement is most clear and judicious, and the information furnished at once so concise and ample, that within this small volume we find a very complete and satisfactory epitome of the history of the world from ancient to modem times. To the public we recommend it, fully persuaded that it needs but to be known to spread its knowledge amongst all classes throughout the British empire."-LITERARY GAZETTE.

MAUNDER. THE TREASURY OF KNOWLEDGE,

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MAUNDER. THE SCIENTIFIC & LITERARY TREASURY;

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MAUNDER. THE BIOGRAPHICAL TREASURY;

Consisting of Memoirs, Sketches, and brief Notices of above 12,000 Eminent Persons of all Age. and Nations, from the Earliest Period of History; forming a new and complete Dictionary of Universal Biography. 4th Edition, with a "Supplement," from the Accession of Queen Victoria to the Present Time. By SAMUEL MAUNDER. 1 vol. fcp. 8vo. pp. 876, with engraved Frontispiece, Ss. 6d. cloth; bound in roan, 10s. 6d.

MAUNDER. THE UNIVERSAL CLASS-BOOK:

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M'CULLOCHI.-A DICTIONARY, GEOGRAPHICAL, STATIS

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M'CULLOCH.-A DICTIONARY, PRACTICAL, THEORETI

CAL, AND HISTORICAL, OF COMMERCE AND COMMERCIAL NAVIGATION. Illustrated with Maps and Plans. By J. R. M'CULLOCH, Esq. Member of the Institute of France. An entirely New Edition, corrected throughout, enlarged, and improved. 8vo. pp. 1398, 50s. cloth; or 55s. strongly half-bound in russia, with flexible backs.

**Neither labour nor expense has been spared in attempting to perfect this edition, every part of which has been carefully revised and corrected, and the statements and details brought down to the latest period. The various Supplements have been incorporated with the work; which has been farther enlarged and improved by information derived from all parts of the world.