=The British Ferns at one View.= By BERTHOLD SEEMANN, Ph.D., F.L.S. An eight-page out-folding sheet, with descriptions of the Orders, Tribes, and Genera, and a Coloured figure of a portion of each species, 8vo, cloth, 6_s._ =Flora of Cambridgeshire=: or, A Catalogue of Plants found in the County of Cambridge, with References to former Catalogues, and the Localities of the Rarer Species. By C. C. BABINGTON, M.A., F.R.S., F.L.S., &c. 12mo, with a Map, 7_s._ =Manual of British Botany=; containing the Flowering Plants and Ferns, arranged according to their Natural Orders. By C. C. BABINGTON, M.A., F.R.S., F.L.S., &c. 12mo, the Fourth Edition, with many additions and corrections, 10_s._ 6_d._, cloth. =Weeds and Wild Flowers.= By LADY WILKINSON. Post 8vo, with Coloured Engravings and Woodcuts, 10_s._ 6_d._ =Elementary Course of Botany=; Structural, Physiological, and Systematic. With a brief Outline of the Geographical and Geological Distribution of Plants. By ARTHUR HENFREY, F.R.S., L.S., &c., Professor of Botany in King’s College, London. Illustrated by upwards of 500 Woodcuts. Post 8vo, 12_s._ 6_d._ _Also by Professor Henfrey._ =Vegetation of Europe, its Conditions and Causes.= Foolscap 8vo, 5_s._ =Principles of the Anatomy and Physiology of the Vegetable Cell.= By HUGO VON MOHL. Translated, with the author’s permission, by ARTHUR HENFREY, F.R.S., &c. 8vo, with an Illustrative Plate and numerous Woodcuts, 7_s._ 6_d._ =Rudiments of Botany.= A Familiar Introduction to the Study of Plants. With Illustrative Woodcuts. Second Edition, foolscap 8vo, 3_s._ 6_d._ =A Set of Six Coloured Diagrams=; for Schools and Lectures. 15_s._ =Thesaurus Capensis=: or, Illustrations of the South African Flora; being Figures and brief descriptions of South African Plants, selected from the Dublin University Herbarium. By W. H. HARVEY, M.D., F.R.S., Professor of Botany in the University of Dublin, and Keeper of the Herbarium. 8vo, Vol. I., with 100 Plates, uncoloured, £1 1_s._ =Flora Capensis=; being a Systematic Description of the Plants of the Cape Colony, Caffraria, and Port Natal. By Professor HARVEY and Dr. SONDER. Vol. I. Ranunculaceæ to Connaraceæ, 8vo, 12_s._ =Index Generum Algarum=: or, A Systematic Catalogue of the Genera of Algæ, Marine and Freshwater: with an Alphabetical Key to all the Names and Synonyms. By Professor HARVEY. 8vo, sewed, 2_s._ 6_d._ =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 1_s._; Coloured Copies, £1 11_s._ 6_d._