Manual of the British Marine Algæ, containing Generic and Specific Descriptions of all the known British Species of Sea-Weeds, with Plates to illustrate all the Genera. By Professor HARVEY. 8vo, £1 1s.; Coloured Copies, £1 11s. 6d.

Nereis Boreali-Americana; or, Contributions towards a History of the Marine Algæ of the Atlantic and Pacific Coasts of North America. By Professor HARVEY. Royal 4to, with 50 Coloured Plates, £3 3s.

History of British Forest-Trees. By PRIDEAUX JOHN SELBY, F.R.S.E., F.L.S., &c. Each species is illustrated by a portrait of some well-known or fine specimen, as a head-piece: the leaf, florification, seed-vessels, or other embellishments tending to make the volume ornamental or useful, are embodied in the text or inserted as tail-pieces. 8vo, with nearly 200 Illustrations, £1 8s.

Manual Flora of Madeira and the adjacent Islands of Porto Santo and the Dezertas. By R. T. LOWE, M.A. 12mo. Part I. Thalamifloræ, 3s. 6d. Part II. in the press.

Primitiæ et Novitiæ Faunæ et Floræ Maderæ et Portus Sancti. Two Memoirs on the Ferns, Flowering Plants, and Land Shells of Madeira and Porto Santo. By R. T. LOWE, M.A. 12mo, 6s. 6d., boards (150 copies printed).

Growth of Plants in closely Glazed Cases. By N. B. WARD, F.R.S., F.L.S. Second Edition, Illustrated. Post 8vo, 5s.

The Sea-Weed Collector’s Guide; containing plain Instructions for Collecting and Preserving; and a List of all the known Species and Localities in Great Britain. By J. COCKS, M.D. Foolscap 8vo, 2s. 6d.

Walks after Wild Flowers; or the Botany of the Bohereens. By RICHARD DOWDEN. Foolscap 8vo, 4s. 6d.

Terra Lindisfarnensis. The Natural History of the Eastern Borders. By GEORGE JOHNSTON, M.D., &c., &c. This volume embraces the Topography and Botany; and gives the popular Names and Uses of the Plants, and the Customs and Beliefs which have been associated with them. The chapter on the Fossil Botany of the district is contributed by George Tate, F.G.S. Illustrated with a few Woodcuts and 15 Plates, 8vo, 10s. 6d.

History of British Ferns. By EDWARD NEWMAN. Comprising, under each Species, Figures, detailed Descriptions, an ample list of Localities, and minute Instructions for Cultivating. 8vo, 18s.