PRINCIPLES OF GEOLOGY;

With a GLOSSARY, containing an Explanation of Scientific Terms, and a copious Index. By CHARLES LYELL, F.R.S. Fifth Edition, revised and enlarged, illustrated with 226 Woodcuts, and 16 Plates and Maps. 4 vols, 12mo. 28s.

For the Use of Beginners. By CHARLES LYELL, Esq., F.R.S.,
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Hundred Woodcuts, Explanatory and Illustrative; and Figures of
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SALMONIA; OR, DAYS OF FLY-FISHING.

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CONSOLATIONS IN TRAVEL; OR, THE LAST DAYS OF A PHILOSOPHER. By SIR HUMPHRY DAVY, late President of the Royal Society. Fourth Edition. Foolscap 8vo.

68.

THE JOURNAL OF A NATURALIST. Fourth and Cheaper
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Post 8vo. 98: 6d.

Plants, trees, and stones, we note ;

Birds, insects, beasts, and many rural things.

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GLEANINGS IN NATURAL HISTORY.

By EDWARD JESSE, Esq., Surveyor of Her Majesty's Parks and Palaces. Fourth Edition of the Three Series. Comprised in 2 vols. with Woodcuts. Foolscap 8vo. 12s.

THE SILURIAN REGION,'

And adjacent Counties of ENGLAND and WALES, including
Salop, Hereford, Radnor, Montgomery, Brecknock, Caermarthen,
Pembroke, Monmouth, Worcester, Gloucester, and Stafford, Geolo-
gically Illustrated.

By R. I. MURCHISON, F. R. S., Vice-President of the Geological
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with large Geological Map, Views, Coloured Sections, and numerous
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OUTLINE OF THE GEOLOGY OF THE NEIGHBOUR-
HOOD OF CHELTENHAM, with an Account of the Origin of its
Mineral Waters. By R. I. MURCHISON, F.R.S., 8vo. 28: 6d.
ILLUSTRATIONS OF THE GEOLOGY OF YORKSHIRE.

By JOHN PHILLIPS, Esq., Professor of Geology in King's Col-
lege, London. Part I. The Yorkshire Coast. A New Edition.
Fifteen Plates and a Map. 4to. £1: 11s: 6d.-Part II. The Moun-
tain-Limestone District. A Map, Sections, and Diagrams; in all,
25 Plates. 4to. £2: 12s : 6d.

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