British Insects; a Familiar Description of the Form, Structure, Habits, and Transformations of Insects. By E. F. Staveley. Crown 8vo, 16 Coloured Steel Plates, engraved from Natural Specimens expressly for the work by E. W. Robinson, and numerous Wood-Engravings by E. C. Rye, 14_s._ British Butterflies and Moths; an Introduction to the Study of our Native Lepidoptera. By H. T. Stainton. Crown 8vo, 16 Coloured Steel Plates, containing Figures of 100 Species, engraved from Natural Specimens expressly for the work by E. W. Robinson, and Wood-Engravings, 10_s._ 6_d._ British Beetles; an Introduction to the Study of our Indigenous Coleoptera. By E. C. Rye. Crown 8vo, 16 Coloured Steel Plates, comprising Figures of nearly 100 Species, engraved from Natural Specimens, expressly for the work, by E. W. Robinson, and 11 Wood-Engravings of Dissections by the Author, 10_s._ 6_d._ British Bees; an Introduction to the Study of the Natural History and Economy of the Bees indigenous to the British Isles. By W. E. Shuckard. Crown 8vo, 16 Coloured Steel Plates, containing nearly 100 Figures, engraved from Natural Specimens, expressly for the work, by E. W. Robinson, and Woodcuts of Dissections, 10_s._ 6_d._ 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._