A Practical Manual On Sea Water Distillation
With A Description Of The Necessary Machinery For The Process

GRIFFIN'S “OPEN-AIR” SERIES. 19 “ Boys COULD NOT HAVE A MORE ALLURING INTRODUCTION to scientific pursuit» than these charming-looking volumes.”—Letter to the Publishers from the Head- tn as ter of one of our great Public Schools. Handsome Cloth, 7s. 6d. Gilt, for Presentation, 8s. 6d. OPERia STUDIES IB BOTANY: SKETCHES OF BRITISH WILD FLOWERS IN THEIR HOMES. By R. LLOYD PRAEGER, B.A, M.R.I.A. Illustrated by Drawings from Nature by S. Rosamond Praeger, and Photographs by R. Welch. General Contents.—A Daisy-Starred Pasture—Under the Hawthorns —By the River—Along the Shingle—A Fragrant Hedgerow—A Connemara Bog—Where the Samphire grows—A Flowery Meadow—Among the Corn (a Study in Weeds)—In the Home of the Alpines—A City Rubbish-Heap— Glossary. “A FRESH AND STIMULATING book . . . should take a high place . . . The Illustrations are drawn with much skill.”—The Times. “Beautifully illustrated. . . . One of the most accurate as well a« interesting books of the kind we have seen."—Athenaeum. “Redolent with the scent of woodland and meadow.”—The Standard. With 12 Full-Page Illustrations from Photographs. Cloth. Second Edition, Revised. 8s. 6d. 0PER1R STUDIES GEOLOGY: An Introduction to Geology Out-of-doors. By GRENVILLE A. J. COLE, F.G.S., Professor of Geology in the Royal College of Science for Ireland, and Examiner in the University of London. General Contents.—The Materials of the Earth—A Mountain Hollow — Down the Valley—Along the Shore—Across the Plains—Dead Volcanoes — A Granite Highland—The Annals of the Earth—The Surrey Hills—The Folds of the Mountains. “The fascinating ‘ Open-Aik Studies’ of Prof. Cole give the subject a glow of animation . . . cannot fail to arouse keen interest in geology.’’—Geological Magazine. “ A. charming book, beautifully illustrated.” — Alheneeum. Beautifully Illustrated. With a Frontispiece in Colours, and Numerous Specially Drawn Plates by Charles Whymper. 7s. 6d. OPEHIH STUDIES I|5 BlRD hlfE: SKETCHES OF BRITISH BIRDS IN THEIR HAUNTS. By CHARLES DIXON. The Spacious Air.—The Open Fields and Downs.—In the Hedgerows.—On Open Heath and Moor.—On the Mountains.—Amongst the Evergreens.— Copse and Woodland.—By Stream and Pool.—The Sandy Wastes and Mud flats.—Sea-laved Rocks.—Birds of the Cities.—Index. “Enriched with excellent illustrations. A welcome addition to all libraries.”—West- minster Review. WNDON: CHARLES GRIFFIN & CO., LIMITED EXETER STREET. 8TRAMÖ.