STAINS FOR WOOD FLOORS. Applied to Ordinary Deal gives an exact imitation of Old Polished Oak Floors. IMMENSE SAVING IN THEIR USE, As no size or varnish is required, the application of one coat only taking the place of two coats of size, one of stain, and one of varnish by the ordinary process. INVALUABLE FOR THE BORDERS OF ROOMS, As they do not scratch like ordinary varnished surfaces, and the cost of staining would be about 1d. a square yard, as against 49. or 5s. per square yard for carpet. GREAT PREVENTIVE TO CONTAGIOUS DISEASES. Dr. Koch, in a recent lecture on Cholera, stated that polishing and dry-rubbing floors was a greater protection than washing floors. Prices, 10s. 6d. per gallon; 6s. 6d. per half-gallon; 48. per quart. Half a gallon will do a three-foot border round a large room. TORBAY PAINT COMPANY, 26, 27, and 28, BILLITER STREET, LONDON, E.C. ODELS OF EVERY DESCRIPTION for PATENTEES and others made to scale or drawing, in wood or metal. Estimates given. Best workmanship guaranteed.-LUCAS & DAVIES, 21, Charles-street, Hatton-garden, E.C. to Being a Guide to Practical Journalism, with Hints how Succeed in Literature. By A. ARTHUR READE, Author of "Study and Stimulants," "Tea and Tea Drinking," &c. "It is crammed full of information from cover to cover; and, moreover, of just the kind and amount of information needed by the literary aspirant. The whole book is so thoroughly useful and to the point, that the literary aspirant will do himself a real injustice if he omits to obtain it."-Knowledge. LONDON: NEW and SECOND-HAND Magic Lanterns and Slides. An immense stock at a great reduction in price. Catalogue three stamps. THE TANGYE GAS ENGINE (ROBSON'S BATENT) NEW and SECOND-HAND A WONDERFUL MEDICINE. Photographic Apparatus, Chemicals, and every requisite. Catalogue with simple instructions for Amateurs in Dry-Plate Photography by W. K. BURTON, C.E., forwarded by post on receipt of seven stamps. NEW and SECOND-HAND Microscopes, Telescopes, Mathematical Cases, Opera Glasses, Spectacles, and every description of Optical and Scientific Goods. Catalogue three stamps. WALTER LAWLEY, 78, Farringdon St., near Ludgate Circus, 79, PALL MALL, LONDON, S.W. Financial position of the Company On the 31st December, 1884. Sums Assured and Bonus £7,602,497 £2,973,945 Being just 40 per cent. of the Sums Assured and Bonus. Subscribed Capital Annual Income Net New Premiums in 1884 £1,500,000 £347,179 10,876 The Expenses of Management are less than 5 per cent. of the gross income. In June 1877, the amount of Profits declared by the Company was In December, 1882... £1,000 £183,883 £218,182 GIVEN AWAY to the Readers of KNOWLEDGE. One Thousand Pounds' Worth of New Music. 132, Clerkenwell-road, London, E.C. (opposite HE LONDON MUSICAL AGENCY, Hatton Garden), will forward absolutely free ONE 4s. Song, full music size, to every reader who encloses this Advertisement and 1d. stamp for the L. M. A.'s WYMAN & SONS, 75, Great Queen Street, W.C. Catalogue of Cheap Music. No. 1,118. Works by E. D. GIRDLESTONE, B.A., &c. OUR DEBT AND DUTY TO THE SOIL, Or, the Poetry and Philosophy of Sewage Utilisation. 12mo. 66 pp. Price 6d. "A most clearly-written, instructive, and useful little pamphlet."-KNOWLEDGE, Feb. 6, 1885, p. 106. OR SALE, FIRST 6 VOLS. of FKNOWLEDGE Complete (Nos. 1 to 165). Also VIRTUE'S IMPERIAL SHAKSPERE, complete; 40 28. parts. Best offers taken, F. S., 62, Rochdale-road, Bury. Guines a Box for Bilious and Nervous Disorders, such 88 Wind and Pain in the Stomach, Sick Headache, Giddiness, Fullness and Swelling after Meals, Dizzi ness, and Drowsiness, Cold Chills, Flushings of Heat, Loss of Appetite, Shortness of Breath, Costiveness, Scurvy, Blotches on the Skin, Disturbed Sleep, Frightful Dreams and all Nervous and Trembling Sensations, &c. The first dose will give relief in twenty minutes. This is no fiction, for they have done it in thousands of cases. Every sufferer is earnestly invited to try one box of these Pills and they will be acknowledged to be WORTH A GUINEA A BOX. HELENS For females of all ages these pills are invaluable, as a few doses of them carry off all gross humours, open all obstructions, and bring about all that is required. No female should be without them. There is no medicine to be found to equal BEECHAM'S PILLS for removing any obstruction or irregularity of the system. If taken according to the directions given with each box they will soon restore females of all ages to sound and robust health. For a weak stomach, impaired digestion, and all disorders of the liver, they act like "MAGIC," and a few doses will be found to work wonders upon the most important organs of the human machine. They strengthen the whole muscular system, restore the long lost complexion, bring back the keen edge of appetite, and arouse into action with the ROSEBUD of health the whole physical energy of the human frame. These are "FACTS" admitted by thousands embracing all classes of society; and one of the best guarantees to the nervous and debilitated is, Beecham's Pills have the largest sale of any patent medicine in the world. CAUTION.-The public are requested to notice that the words "BEECHAM'S PILLS, St. Helens," are on the Government Stamp affixed to each box of the Pills. If not on, they are a forgery. Prepared only and sold wholesale and retail by the proprietor, T. BEECHAM, Chemist, St. Helens, Lancashire, in boxes at 1s. 1d. and 2s. 9d. each. Sent post free from the proprietor for 15 or 36 stamps.-Sold by all Druggists and Patent Medicine Dealers in the Kingdom. N.B. Full directions are given with each box. SAMPLES AND PRICE LISTS POST FREE. Childrens', 1/5 Ladies' 2/6 VIVISECTION: In its Scientific, Religious, GEOMETRY AND GRAVITATION £20. and Moral Aspects. 8vo., 68 pp. Price 1s. Apply to the Author, 17, Goldney-rd. Clifton, Bristol. A powerful plea by a competent scholar, an able reasoner, and a fair critic."-Oldham Chronicle. ALLEN. of Saml. Harris & Co., Publishers, 5, Bishopsgate-street Without; and of A. Kingdon, Printer, 18, Finsburystreet, E.C. Price One Shilling. - TOBACCONISTS COMMENCING.-An Illustrated Guide (110 pages) how to open respectably from £20 to £2,000. 3 Stamps. -H.MYERS & Co., Cigar and Tobacco Merchants, 109, Euston-road, London. Telephone No. 7541. OUR EYES. HOW TO USE OUR EYES, AND HOW TO PRESERVE With Special Information about Spectacles. By JOHN BROWNING, F.R.A.S., F.R.M.S., &c. WITH 54 ILLUSTRATIONS. PRICE 18., CLOTH, 18. 6d. Extracts from Notices of the First Edition :"How to Use Our Eyes,' by John Browning, F.R.A.S., is a thoroughly practical little manual."-Graphic. "Gives many a useful hint to those who enjoy good eyesight and wish to preserve it, and gives the advice of an oculist to those obliged to wear spectacles."-Pall Mall Gazette. CHATTO & WINDUS, PICCADILLY, LONDON, W., AND ALL BOOKSELLERS. Sent free for 1s. 2d. by the Author, JOHN BROWNING, 63, Strand, London, W.C. BROWNING'S IMPROVED METHOD OF SUITING THE SIGHT either personally or by correspondence.-BROWNING'S AXIS-CUT JOHN BROWNING, 63, STRAND, LONDON, W.C. MAIGNEN'S PATENT FILTRE RAPIDE THE ONLY FILTER USED ON THE BOATS OF THE NILE. IMPORTANT TESTIMONIAL FROM LORD WOLSELEY. "I have much pleasure in stating that Messrs. Maignen's 'Filtre Rapide,' which was used by our troops in the Expedition up the Nile, gave very satisfactory results indeed. It filtered the water both quickly and well, and was much valued by our soldiers. "6, Hill Street, W., July 28, 1885. "WOLSELEY." Full particulars in Pamphlet, "Water, Preventable Disease, and Filtration," by P. A. MAIGNEN, 32, St. Mary-atHill, Eastcheap, London, E.C.; West End Branch, 15, Pall Mall, S.W. PHOTOGRAPHIC APPARATUS For TOURISTS, BICYCLISTS, TRICYCLISTS, &c. &c. TENTH THOUSAND "How to be a Successful Amateur Photographer," by W. J. Lancaster, F.C.S., &c. 64 pp., 31 Illustrations, 6d. post free. Illustrated Catalogue, 2 stamps. J. LANCASTER & SON, Opticians, Birmingham. Printed and Published for the Proprietors by CHARLES WYMAN, at the Printing Office of Wyman & Sons, 74-76, Great Queen-street, CONTENTS:-Americanisms-Mysteries and Moralities-Phylloxera under the Microscope-Finding the Way at Sea-Geological Rambles -Removal of Flood Rock-Tricycles in 1885-Face of the Sky-Gossip-Reviews-Correspondence-Chess-Whist. KNOWLED MAGAZINE OF SCIENCE CONDUCTED BY RICHARD A. PROCTOR. EYEPIECES and Other Accessories. W. WRAY, Optician, PHOTOGRAPHY.-Practical Lessons given free to the purchaser of Stanley's Complete Sets of Apparatus. Customer's own portrait taken by the Camera and Lens he purchases, thereby enabling him to see what work it will do. Complete sets for Dry-plate process, 50s,, 63s., 80s., £5. 10s., £7. 10s., and upwards. Machine-made CAMERAS, superior to hand make, manufactured at own works, suitable for export. HOTOGRAPHY MADE EASY." New "PHO INSTANTANEOUS exposures. Entirely under control. Smallest made. MPROVED SENSITISED PAPER. NE Per sheet 1s., or ready cut, sufficient for 42 C.D.V., 15 Cabinets, or 10 half-plates, 1s. 1d., post free. EW "RAPID" POSITIVE PAPER, for printing by artificial light, 50 pieces C.D.V., 1s. 2d.; 24 cabinets, 1s. 8d.; or whole sheet, 1s. 2d. post free. New Illustrated Price list post free 1 stamp. AS A PHYSIOLOGICAL BASIS FOR THE By HERMANN L. F. HELMHOLTZ, M.D., Second English Edition translated, thoroughly re- BY ALEXANDER J. ELLIS, B.A., F.R.S., &c. With 68 Figures Engraved on Wood, and 42 passages in Musical Notes. WHATO FRIOR one can obtain from PROFESSOR LOISETTE? A good memory-the Physiological Art of Never Forgetting-wholly unlike Mnemonics. Any book whatever mastered in one reading. Lost Memories restored. The worst made good, and the best better. Prospectus post free, giving opinions of Mr. RICHARD A. PROCTOR, Dr. ANDREW WILSON, and others who have studied the system. Great inducements to Correspondence Classes in all parts of the world. Also private instruction by post. Day and Evening Classes in "Never Forgetting," and for Cure of "Mind-Wandering." PROFESSOR LOISETTE, 37, New Oxford-street, London. Manufacturers of Entomological Plain Ring Nets, wire or cane, including Stick, Cabinet FIELD'S Of all Chemists, Grocers, and Wholesale Prepared from Sea-Weeds and Glycerine, and containing all the SAMPHIRE Absolutely pure and neutral, free from all artificial Scent and Colour and uncombined Alkali. One 6d Tablet contains the essentials of 20 SEA BATHS. SOAP. E. CETTI, Wholesale Manufacturer of all kinds of Meteorological Instruments, Mercurial and Aneroid Barometers. Rain and Vacuum Gauges. Makers of all the Improved Clinicals, Thermometers, Water and Gas Apparatus. Electric Light, and Mercurial Pumps of all kinds. Apparatus of all kinds for Laboratory Use. Large Assortment of Graduated Measures and Funnels always in stock. Special Designs in Glass Blowing carried out on the Premises. 36, BROOK STREET, HOLBORN, LONDON. Glass Works, LAMBETH. PATTERNS OF RATIONAL DRESS. Price 2s. 6d., Post Free To any Address in the United Kingdom. Under Garments as worn by the Lady Correspondent of "KNOWLEDGE on this subject. Apply or Address W. MILES, Knowledge Office, 74, Great Queen Street, London, W.C. THE PATENT BOOK-SHELF FITTINGS, As used in the PUBLIC LIBRARIES of LIVERPOOL, GLASGOW, BIRMINGHAM, &c., enable a nice adjustment of Shelves to be made without trouble. Hookham's Patent PICTURE LINE & FASTENERS afford the MOST SECURE AND EASY means of hanging Pictures. CURRALL'S PATENT VENTILATORS secure a regular supply of fresh air, without draught, at a very small cost. Illustrations and particulars sent POST FREE on application to WILLIAM TONKS & SONS, Moseley Street, BIRMINGHAM. NEW AND RECENT NATURAL HISTORY BOOKS. KIRBY'S ENTOMOLOGY. ELEMENTARY TEXT-BOOK OF ENTOMOLOGY. By W. F. Kirby [This day. . The (Brit. Mus.). Illustrated with 650 Woodcuts. Square 8vo., cloth elegant, gilt top, 15s. "It is, in fact, a succinct Encyclopædia of the subject. Plain and perspicuous in language, and profusely illustrated, the insect must be a rare one indeed whose genns-and perhaps even whose species-the reader fails to determine without difficulty. woodcuts are so admirable as almost to cheat the eye familiar with the objects presented into the belief that it is gazing upon the colours which it knows so well. Advanced entomologists will obtain Mr. Kirby's fine volume as a handy book of reference; the student will buy it as an excellent introduction to the science, and as an absolutely trustworthy text-book."—Knowledge. BRITISH BUTTERFLIES, MOTHS, AND BEETLES. KIRBY (Brit. Mus.). Crown 8vo., with 129 Woodcuts, cloth, 1s. By W. F. [This day. With 760 New Woodcuts, 8vo., cloth. CLAUS (Univ. Vienna) and A. SEDGWICK (Trin. Coll. Camb.). are "Teachers and students alike have been anxiously waiting for its appearance. We would lay especial weight on the illustrations of this work for two reasons: firstly, because correct figures are of enormous assistance to the student, and secondly, . it contains as rich a supply of well-drawn, well-engraved, and well-selected figures as ever man could desire admirably printed. The whole enterprise reflects the greatest credit."-Zoologist. "It is not often a work so entirely fulfils its object. It is alike creditable to author, translators, and publishers, who seem to have vied with each other in rendering it not only valuable but attractive."-Knowledge. PRANTL & VINES' BOTANY. ELEMENTARY TEXT-BOOK OF BOTANY. By Prof. W. Prantl and S. H. VINES, D.Sc., M.A. (Fellow and Lecturer of Christ's College, Cambridge). Fourth Edition [1885]. 275 Woodcuts. Demy 8vo., cloth, 9s. HISTORY OF BRITISH FERNS. By E. Newman, [Now ready. F.L.S. Third Edition. Cuts. 8vo., cloth, 18s. A "People's Edition" of the same (abridged), containing numerous Figures, is also issued. Fifth Edition, 12mo., cloth, 28. ALPINE PLANTS. With Painted from Nature. By J. Seboth. descriptive text by A. W. BENNETT, M.A., B.Sc. Four Series, each with 100 coloured plates. Super royal 16mo., half persian, gilt tops, each 25s. [New Edition of Series I. shortly. DICTIONARY OF BRITISH BIRDS. By Colonel Montague. New Edition. By E. NEWMAN, F.L.S. Demy 8vo., cloth gilt, 7s. 6d. HEHN. THE WANDERINGS OF PLANTS AND ANIMALS. BIBLIOGRAPHY, INDEX, INDEX, AND GUIDE TO CLIMATE. [Ready. By A. WILD LIFE IN CANARA AND GANJAM. By Gordon S. Forbes, "ALERT.' By R. W. Coppinger, M.D. (Staff-Surgeon on board " Alert.") New Edition with all the Original Plates. 8vo., 68. "No one could be better fitted than Dr. Coppinger to put into readable shape the result of his investigations and his impressions of strange scenery and savage men."-Saturday Review. FROM PARIS TO PEKIN OVER SIBERIAN SNOWS. of VICTOR MEIGNAN. Edited by WILLIAM CONN. With 16 plates. Demy 8vo. The Travels [Nearly ready. SWAN SONNENSCHEIN & CO., PATERNOSTER SQUARE. |