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, with 16 Coloured Plates by W. Fitch, and 55 Wood-Engravings, 10_s._ 6_d._ The British Ferns; Coloured Figures and Descriptions, with Analysis of the Fructification and Venation of the Ferns of Great Britain and Ireland. By Sir W. J. Hooker, F.R.S. Royal 8vo, 66 Coloured Plates, 2_l._ 2_s._ Garden Ferns; Coloured Figures and Descriptions, with Analysis of the Fructification and Venation, of a Selection of Exotic Ferns, adapted for Cultivation in the Garden, Hothouse, and Conservatory. By Sir W. J. Hooker, F.R.S. Royal 8vo, 64 Coloured Plates, 2_l._ 2_s._ Filices Exoticæ; Coloured Figures and Description of Exotic Ferns. By Sir W. J. Hooker, F.R.S. Royal 4to, 100 Coloured Plates, 6_l._ 11_s._ Ferny Combes; a Ramble after Ferns in the Glens and Valleys of Devonshire. By Charlotte Chanter. _Third Edition_. Fcap. 8vo, 8 Coloured Plates by Fitch, and a Map of the County, 5_s._ =MOSSES.= Handbook of British Mosses, containing all that are known to be natives of the British Isles. By the Rev. M. J. Berkeley, M.A., F.L.S. Demy 8vo, 24 Coloured Plates, 21_s._ Synopsis of British Mosses, containing Descriptions of all the Genera and Species (with localities of the rarer ones) found in Great Britain and Ireland. By Charles P. Hobkirk, President of the Huddersfield Naturalist's Society. Crown 8vo, 7_s._ 6_d._ =SEAWEEDS.= 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, with 16 Coloured Plates, drawn expressly for the work by W. Fitch, 10_s._ 6_d._ Phycologia Britannica; or, History of British Seaweeds, containing Coloured Figures, Generic and Specific Characters, Synonyms and Descriptions of all the Species of Algæ inhabiting the Shores of the British Islands. By Dr. W. H. Harvey, F.R.S. New Edition. Royal 8vo, 4 vols. 360 Coloured Plates, 7_l._ 10_s._ Phycologia Australica: a History of Australian Seaweeds, comprising Coloured Figures and Descriptions of the more characteristic Marine Algæ of New South Wales, Victoria, Tasmania, South Australia and Western Australia, and a Synopsis of all known Australian Algæ. By Dr. Harvey, F.R.S. Royal 8vo, 5 vols., 300 Coloured Plates, 7_l._ 13_s._