67 Materialism. Barrow, Brinkley (the astronomer), Buckland, Sedgwick, Peacock (distinguished for his original views in algebra), Whewell, Mosely (known for his valuable contributions to engineering science). All these were original thinkers. Many more might be added from the ranks of the Jesuits in the Roman Church in the 17th century. It is some satisfaction to learn that, whilst materialism is so rife in Europe, it is decidedly at a discount on the other side of the Atlantic. The Americans are a quick-witted people, and were among the first to see the errors and satirize the doctrines of the modern school. In the American Journal of Insanity for July, 1872, the following passage occurs in reference to materialism: "This word is now deservedly odious, as representing a doctrine weak in science and unsound in morals." It might prove to be a useful work if someone, endowed with energy and industry suitable for such a task, were to give an extract of all the philosophic systems, from Democritus down to erbert Spencer. It might serve as a warning to those ambitious of forming a novel system not to waste their time in following what might prove to be an ignis fatuus, calculated to deceive others as well as themselves. WYMAN AND SONS, PRINTERS, GREAT QUEEN STREET, LONDON. 8vo., cloth, with Illustrations on Stone and Wood, price 2s. 6d. ALF-HOURS WITH THE TELESCOPE, a Popular Guide to the Use of the Telescope as a means o ment and Instruction. Adapted to inexpensive Instruments By R. A. PROCTOR, B.A., F.R.A.S. Demy 4to., cloth, price 5s. HALF-HOURS WITH THE STARS. PLAIN AND EASY GUIDE TO THE KNOWLEDGE OF THE CONSTELLATIONS. ing in Twelve Maps the position of the principal Star-Group: after night throughout the Year, with Introduction and a ate explanation of each Map. True for every Year. By R. A. PROCTOR, B.A., F.R.A.S., Second Edition, greatly enlarged, price 2s. 6d. HE PREPARATION AND MOUNTING OF MICROSCOPIC OBJECTS. BY THOMAS DAVIES. EDITED BY JOHN MATTHEWS, M.D., F.R.M.S. hap. I.-Tests and Agents, Staining Materials, Hardening Agents, Softening ditto, Solvents and Differentiating Agents hap. II.-Apparatus. hap. III.-To Prepare and Mount Objects "Dry." hap. IV.-Mounting in Canada Balsam. Chap. V.-Preservative Liquids. Chap. VI.-Sections and how to cut them, with remarks on Dissection. Chap. VII.-Injection. Chap. VIII.--Miscellaneous. London: ROBERT HARDWICKE, 192, Piccadilly. Small 8vo., with 148 Illustrations, price 4s. plain; 6s. colourea, - Contents:-Half-an-Hour with the Waves-Preparations-Seaweeds-Sponges --- Seaworms - Corallines-Jelly-Fish-Sea-Anemones-Sea-Mats and Squirts-Sea-Urchins and Star-Fish-ShellFish-Crustaceæ. "The style is attractive, the illustrations plentiful and good of their kind, and the various objects described or pictured ought to be interesting to everybody."-Standard. SECOND EDITION, Small 8vo., nearly 300 Cuts, price 4s. cloth, HALF-HOURS IN THE GREEN LANES. A BOOK FOR A COUNTRY STROLL. BY J. E. TAYLOR, F.L.S., F.G.S. Contents:-By a Tarn-Side-Fishes, Mollusks, &c,, in the Tarn -Reptiles-Birds-Mammals-Butterflies and Moths-Beetles and other Insects-Shells and Slugs - Flowering Plants-Grasses— Ferns-Mosses-Fungi-Lichens. *** In the compilation of this little book, it has been intended to administer to the growing love of Natural History by introducing to the notice of intellectual people, who have not had time to enter into the technicalities of scientific questions, some of the myriad objects which are seen in an ordinary country walk. Large fcap. 8vo., fully Illustrated, price 4s., - Contents:-A Piece of Granite Quartz - Slate-LimestoneSandstone-Coal - Rock Salt-Jet - Chalk - Purbeck Marble— Clay-Lignite-The Crags-A Boulder-A Gravel Pit. "This is a most amusing work, exceedingly well illustrated."-Evening Standard. Super-royal 8vo, price 25s.; or separately, Moths, 20s. ; NEWMAN'S BRITISH MOTHS AND BUTTERFLIES, AN ILLUSTRATED NATURAL HISTORY OF. With Life-size Figures from Nature of each Species of the more striking varieties; also full description of both the Perfect Insect and the Caterpillar, together with the Dates of Appearance and Localities where found. London: ROBERT HARDWICKE, 192, Piccadilly. the cheapest and most complete book which describes all the Ferns out the world. So full and clear are its details that anybody who the trouble to master a few botanical terms can with certainty y fern he may meet with in any part of the world, whether growing under cultivation in garden or hothouse. lv Illustrated, price 4s. coloured by hand; 2s. 6d. plain. THE BRITISH FERNS in and Easy Account of). Together with their ClassificaArrangement of Genera, Structure and Functions, directions t-door and indoor Cultivation, &c. By Mrs. LANKESTER. t only plain and easy, but elegantly illustrated."-Athenæum. Crown 8vo. cloth, fully Illustrated, price 6s. FERNS, BRITISH AND FOREIGN : History, Organography, Classification, Nomenclature, and re; with Directions showing which are the best adapted for Hothouse, Greenhouse, Open Air Fernery, or Wardian Case an Index of Genera, Species, and Synonyms. By JOHN H, A.L.S., late Curator of the Royal Gardens, Kew. With Voodcuts. cond Edition, with Appendix and Portrait of the Author. Smith is acknowledged to be one of the first authorities on Ferns g been engaged nearly half a century in arranging them at Kew. Fcap. 8vo. cloth, coloured by hand, price 4s. WILD FLOWERS WORTH NOTICE: election from the British Flora of some of our Native Plants h are most attractive for their Beauty, Uses, or Associations By Mrs. LANKESTER. Illustrated by J. E. SOWERBY. We could while away a long summer day talking of the pleasant thing ested by this little book. Although all intelligent persons canno me botanists, not to know the wild flowers of our country is to b rant both of our country and ourselves. And this little book will, as :et companion during holiday rambles-the descriptions and plates bein good-destroy this ignorance in reference to at least a hundred plants er mastering it, the student will be not a little astounded at his ow ning, when he surveys it in the systematic chapter of contents." enæum. London: ROBERT HARDWICKE, 192, Piccadilly. |