British Spiders; an Introduction to the Study of the ARANEIDÆ found in Great Britain and Ireland. By E. F. STAVELEY. Crown 8vo, 16 Plates, containing Coloured Figures of nearly 100 Species, and 40 Diagrams, showing the number and position of the eyes in various Genera, drawn expressly for the work by TUFFEN WEST, and 44 Wood-Engravings, 10_s._ 6_d._ British Grasses; an Introduction to the Study of the Grasses found in the British Isles. By M. PLUES. Crown 8vo, 16 Coloured Plates, drawn expressly for the work by W. FITCH, and 100 Wood-Engravings, 10_s._ 6_d._ British Ferns; an Introduction to the Study of the FERNS, LYCOPODS, and EQUISETA indigenous to the British Isles. With Chapters on the Structure, Propagation, Cultivation, Diseases, Uses, Preservation, and Distribution of Ferns. By M. PLUES. Crown 8vo, 16 Coloured Plates, drawn expressly for the work by W. FITCH, and 55 Wood-Engravings, 10_s._ 6_d._ British Seaweeds; an Introduction to the Study of the Marine ALGÆ of Great Britain, Ireland, and the Channel Islands. By S. O. GRAY. Crown 8vo, 16 Coloured Plates, drawn expressly for the work by W. FITCH, 10_s._ 6_d._ Other Works in preparation. BOTANY. The Young Collector’s Handybook of Botany. By the Rev. H. P. DUNSTER, M.A. 66 Wood-Engravings, 3_s._ 6_d._ The Natural History of Plants. By H. BAILLON, President of the Linnæan Society of Paris, Professor of Medical Natural History and Director of the Botanical Garden of the Faculty of Medicine of Paris. Translated by MARCUS M. HARTOG, B. Sc. Lond., Scholar of Trinity College, Cambridge. Super-royal 8vo. Vols. I. and II., with 800 Wood-Engravings, 25_s._ each. Domestic Botany; an Exposition of the Structure and Classification of Plants, and of their uses for Food, Clothing, Medicine, and Manufacturing Purposes. By JOHN SMITH, A.L.S., ex-Curator of the Royal Botanic Gardens, Kew. Crown 8vo, 16 Coloured Plates and Wood-Engravings, 16_s._ Handbook of the British Flora; a Description of the Flowering Plants and Ferns indigenous to, or naturalized in, the British Isles. For the Use of Beginners and Amateurs. By GEORGE BENTHAM, F.R.S., President of the Linnæan Society. New Edition, Crown 8vo, 12_s._ The Illustrated British Flora, a Description (with a Wood-Engraving, including dissections, of each species) of the Flowering Plants and Ferns indigenous to, or naturalized in, the British Isles. By GEORGE BENTHAM, F.R.S., President of the Linnæan Society. Demy 8vo, 2 vols., 1295 Wood-Engravings, from Original Drawings by W. FITCH, £3 10_s._