tions, 275; Report on Luminous Glass, Enamelling on, 209. Gold Fields in New Zealand, 241. Greenwich Observatory, State of, 260. Gunpowder fired by Electricity, 171. Hair suddenly changing Colour, 214. Heat, Radiation and Absorption of, Heating and Ventilating, New System Helmholtz, Prof., on the Conservation of Force in Organic Nature, 152. Horticultural Society's Gardens, New, Humboldt on the Cumana Earth- Hydraulic Press, the, 97 Hydrophobia prevented, 198. Induction Coil, Experiments with, 169. Ireland, Silurian Rocks of, 244. Iron Construction, Mr. Shields on, 78. Leyden Jar, Prof. Tyndall on, 167. Lighting Gas by Electricity, 105. Lightning Figures, Tomlinson on, 139. London Main Drainage Works, 92. Matteucci on the Torpedo, 165. 61. Mendoza, Great Earthquake in, 255. Meteor in South Australia, 268. Meteorology of 1861, 276. Meteorological Phenomena and Ter- National Defences, on the, by Mr. New Zealand Gold-Fields, 241. Niepce de Saint-Victor on the Persis- Nitrate of Silver, New Method of Pre- Nitrogen, Dr. Frankland on, 192. Obituary of Eminent Persons, 1861, Observatory, Greenwich, Report of, 260. Observatory, Kew, Report of, 130. Organic Nature, Conservation of Force Organization, Molecular Theory of, Owen, Prof., on Fishes, 228; Gorilla, 249. Phosphoretted Hydrogen, 195. Photography, Celestial, 147. Pier, Southport, Construction of, 60. Planet, New one, discovered, 266. Projectiles, Path of, 151. Pyronome for Quarry-blasting, 89. Railway-Carriages Safety Signals, 66. Railway, New System of, 67. Railways, Street, 67. Railway, Submarine Tube, across the British Channel, 68. Railway Wheels, Iron Tires of, 65. Rain on St. Swithin's Day, 269. Reed, Mr., on Admiralty Iron-cased Resistance of Ships, 50. Rifle, New Breech-loading, 22. Rocks, Primæval, Sir R. I. Murchison Royal Society Anniversary, 124. Russell, Mr. Scott, on Armour-plates, Saturn, the Ring of, 267. Sea, the Milky, 158. Sea, Recent Encroachments of the, Steam-engine, Stationary, 75. Steel, Manufacture of, 81. Steel, Shear, Manufacture of, 82. Stone Preservative Processes, 118-123. Submarine Cables, Report on, 174. Sugar, Improved Manufacture of, 203. Sun, Age of the heat of the, 134. Tablets, Indestructible, for Street Target Experiments at Shoeburyness, 23. Telegraph Wires, Oxidation of, 174. Temperature of the Earth's Crust, 128. Tennant, Prof., his description of the Time-gun, Edinburgh, 23. Tite, Mr., on the Houses of Parliament Unsinkable Iron Ships, 48. Varnish, India-rubber, 111. Ventilating and Heating, New System Ventilating Chimney-tops, 101. Vivisection, on, 211. Volcano on the African Coast of the Volcanoes, Ammonia from, 255. Warrior Experiments, 33. Warrior, Trial of the, 34. Water, Deepest around the British Water, Freezing of, and Formation of Water as Fuel, 107. Water, Is it Colourless? 252. Water, Saline Impurities of, 202. Water, Spheroidal Condition of, 202. Woods, Dr., on Dissociation, 200. Woods for Ship-building, 52. Writing, to prevent being effaced, 116. THE GREAT INTERNATIONAL EXHIBITION, 1862. Early in the Autumn will be published, uniform with the present Volume, Describing the most remarkable articles and objects exhibited; and the The Machine Made Locks are adapted for every purpose for which Locks are required, at prices that defy competition. May be had of all respectable Ironmongers in Town and Country. Illustrated Lists of Locks, Iron Safes, and Doors, HUBB'S PATENT SAFES-the most secure against CHU CHUBB'S FIRE-PROOF STRONG ROOM DOORS. HUBB'S CH PATENT DETECTOR LOCKS AND STREET-DOOR LATCHES. CHUBB'S CASH AND DEED BOXES. Illustrated Price Lists gratis and post free. CHUBB and SON, 57, St. Paul's Churchyard, London. MATHEMATICAL, DRAWING, AND SURVEYING INSTRU MENTS, Theodolites, Levels, Chains, Tapes, &c., and every article for Draughtsmen's use, of finest quality, may be had of the manufacturer direct, at 50 per cent. below Opticians's Prices. Lists on application. WM. F. STANLEY, 3, GT. TURNSTILE, HOLBORN, LONDON, W.C. The best Drawing Pen to be had post free for 24 Stamps. ALLEN'S PATENT PORTMANTEAUS AND TRAVELLING ALLEN'S PATENT ALLEN'S PATENT BAG. BAGS with square openings. Ladies' Wardrobe Trunks, Dressing Bags, with silver fittings. Despatch Boxes. Writing and Dressing Cases, and 500 other articles for home or continental travelling. Illustrated Catalogues post free. Also Allen's Barrack Furniture Catalogue of Portable Bedsteads, Drawers, Easy Chairs, Washhand Stands, Canteens, &c., post free. J. W. ALLEN, Manufacturer and Patentee, 22 and 31, West Strand, London, W.C. THOMAS PHILLIPS, 55, SKINNER-STREET, SNOW-HILL, LONDON. MANUFACTURRR OF ALL KINDS OF GAS APPARATUS FOR GENERAL DOMESTIC PURPOSES. Gas Stoves, without Flues, from 16s. Cooking Apparatus from 11., for roasting, baking, &c. Halls, Conservatories, Public Buildings, &c., heated by gas or hot water. Baths encased in mahogany, plain wood, or oak, and fixed on reasonable terms, in any part of the country. Estimates and Plans given. GAS BATHS, N.B.-Paten t Safety Atlas Chandeliers, and all kinds of Superior Gasfittings; Outside Lamps, Posts, &c., for public buildings; Depôt for Louis's Patent Day and Gas Light Reflectors: Portable Coppers_for either Gas or Fuel; Superior Iron Tubes and Fittings for Gas, Steam, or Hot water; Portable Gas Works, Medieval Brass Workers, Portable Cooking Stoves for Gas or Fuel, as used by the British Army, &c. A Prospectus sent free by post. |