BOURDON'S MR. PRESSURE E. BOURDON, GAUGES. 74, FAUBOURG DU TEMPLE, PARIS, BEGS to announce that his engagement with Messrs. Dewrance and Co., for the sale of his Patent Pressure Gauge, having expired, he has APPOINTED THE WELL KNOWN INSTRUMENT MAKERS, OF HATTON GARDEN, LONDON, AS HIS From whom prices (greatly reduced) and terms may be obtained. Mr. BOURDON specially calls the attention of Engineers to the fact that the Gauge now sold by MESSRS. DEWRANCE AND CO., and others, as " Bourdon's Patent Gauges," are not of his manufacture, and that he is not in any was connected with any makers in England, his Gauges having always been, and still continue to be, made at his Factory in Paris. ROBERTSON'S PATENT NOISELESS STEAM-WINCHES, CRANES, AND HOISTS. THE PATENT FRICTIONAL GEARING COMPANY, ENGINEERS and MILLWRIGHTS, EAST MILTON STREET, GLASGOW, Manufac- IN India-rubber PRICE! core HANCOCK'S VULCANIZED INDIARUBBER FOR ENGINEERS' & MECHANICAL PURPOSES. CRICKMER'S PATENT ELASTIC METALLIC PACKING Suction Hose for Pumps and Engines. Takes less Tallow to lubricate it than any other, as the Steam enters the Mesh of the Wire Gauze, lubricates the rods, and keeps them in Delivery Hose for Fire Engines and Factory use. Illustrated Price Lists on Application. JOSEPH GILLOTT, METALLIC PENMAKER TO THE QUEEN, Plastic Institutions, and the Public generally, that, by a to inform the Commercial World, novel application of his unrivalled machinery for making Steel Pens, he has introduced a new series of his useful productions, which, for excellence of temper, quality of material, and above all cheapness in price, must insure universal approbation. and defy competition. Each Pen bears the impress of his name as a guarantee of quality and they are put in boxes containing one gross each, with label outside, and the fac-simile of his signature. introduced his WARRANTED SCHOOL and PUBLIC PENS, which are At the request of numerous persons engaged in tuition, J. G. has especially adapted to their use, being of different degrees of flexibility, and with fine, medium, and broad points, suitable for the various kinds of Writing taught in Schools. Sold Retail by all Stationers and Booksellers. Merchants and Wholesale Dealers can be supplied at the Works, Graham-street, Birmingham; at 91, John-street, New York; and at 37, Gracechurch-street, London, HOPE IRON WORKS, 106, SOUTHWARK BRIDGE ROAD, LONDON, (ESTABLISHED IN THE YEAR 1851), MANUFACTURER OF ENGINEERS', MILLWRIGHTS', IRON SHIPBUILDERS', AND BOILERMAKERS' TOOLS, FROM NEW AND IMPROVED PATTERNS. The Machines now on Hand and for Sale consist of Screw-cutting Lathes, 6, 8, 9, 10, and 14 in. centres, bed 6, 13, 15, 16, and 20 ft. long; Single and Double Power Hand Lathes; Foot Lathes, single and double power; fifteen Drilling and Boring Machines of various sizes; Powerful Slotting Machine; Shaping Machine, with two tables; Punching and Shearing Machines for t,,,, and 1 inch plate; Double-ended ditto for and 1 inch plate, with stop motion for punch; Planing Machine, to plane 6 ft. long X 2 ft. 9 in. wide; ditto, 4 ft. X 2 ft.; ditto, 2 ft. 6 in. by 15 in. Plate-bending Rolls, 8 ft. 6 in. long; Weston's Pulley Blocks, Screw Jacks, Ratchet Drill Braces, &c.-Apply as above.-For patterns of other Machines see my Advertisements in the back numbers of the MECHANICS' MAGAZINE. MERCHANTS and SHIPPERS will find every facility for supplying their orders without delay, as a large assortment of ENGINEERS' TOOLS are always kept in stock, ready for immediate delivery.-All Goods warranted to be of sound material and good workmanship. For Prices and further Particulars apply as above. PATENT SELF-REGULATING BOILER, With Wrought-iron Vertical Tubes, is the best arrangement that has been introduced for insuring a uniform temperature. It is simple in its construction and action; economises fuel to the extent of 50 per cent. and upwards; and being complete within itself, requires no brickwork whatever. The Regulator may be set so as to maintain the water at the temperature required for any length of time the boiler requires. Attention only once every twelve to twenty hours, according to the rate of combustion. Apparatus with the ordinary saddle boiler if preferred. PRIZE MEDALS. INTERNATIONAL EXHIBITION, CLASS I. AND II. PATENT PLUMBAGO CRUCIBLES. THATENT OR kind for which a MEDAL has been AWARDED, and are now ur ed exclusively by the English, Australian, and Indian Mints; the French, Russian, and other Continental Mints; the Royal Arsenals of Woolwich, Brest, and Toulon &c., &c.; and have been adopted by most of the large Engineers, Brass Founders, and Refiners in this country and abroad. The great supe riority of these Melting Pots consists in their capability of melting on an average Forty Pourings of the most difficult metals, and a still greater number of those of an ordinary character, some of them having actually reached the extraordinary number of 96 meltings. ONLY PRIZE MEDAL 1862. PATENT PLUMBACO CRUCIBLE COY. BATTERSEA WORKS. LONDON. They are unaffected by change of temperature, never crack, and become heated much more rapidly than any other Crueibles. In consequence of their great durability the saving of waste is al ove ry eonsiderable. The Company have recently intro duced Crucibles especially adapted for the following purposes, viz., MALLEABLE IRON MELTING, the average working of which has proved to be about SEVEN DAYS; STEEL MELTING, which are found to SAVE NEARLY A TON AND A HALF OF FUEL TO EVERY TON OF STEEL FUSED; and tor ZINC MELTING, lasting much longer than the ordinary Iron pots, and saving the great loss which arises from mixture with Iron, The Patent Plumbago Crucible Company likewise manufacture and import Clay Crucibles, Muffies, Portable Furnaces, &c., Stove Backs, all descriptions of Fire Standing goods, and every requisite or the Assayer and Dentist For Lists, Testimonials, &c., apply to THE PATENT PLUMBAGO CRUCIBLE COMPANY, BATTERSEA WORKS, LONDON, S.W. W. MELLOR & Co., ENGINEERS, MILLWRIGHTS, MACHINISTS, TOOL MAKERS, &c., HOUGH HOLE WORKS, RAINOW, Near MACCLESFIELD. N.B.-Patentees and Makers of Self-Acting Steam Hammers from cwt. upwards. These Hammers are under greacommand, giving variety in quant tity and intensity of strokes. The second size, 13 cwt., will make up to 600 self-acting strokes per minute if required. This size is found exceed ingly useful in a smith's shop. FIRE! BURGLARS! FIRE! 20 ft. by 12 ft. 25 it... 30 ft. 39 40 ft. BO ft. 12 ft. 12 ft. 15 ft. » 15 ft 17 0 0 18 0 0 19 10 O 22 0 0 Each apparatus to include one Patent Boiler and Regulalator complete, 4-in. pipes and connections, supply cistern, feed pipe, air-cock, and cement. 14 10 O 16 0 0 Each apparatus to include one Saddle Boiler, with door and frame, furnace bars, bearers, soot door, damper, 4-in. pipes and connections. supply cistern, air-cock, and cement. ATLANTIC TELEGRAPH COMPANY. TO CONTRACTORS, ENGINEERS, SHIPBUILDERS, IMPORTANT TO MANUFACTURERS, Opening of the Cable to the Public. PROVISIONAL TARIFF AND TRAFFIC ARRANGEMENTS. In the looked-for event of success to the renewed effort to connect Europe with America by telegraph, it is expected that the cable will be open for public business about the end of the present month. The extent to which the telegraph between Europe and America will be used by the public is at present purely conjectural. It may, however, be assumed as in any case likely to be considerable, and as the capacity of a single telegraphic cable is very limited, the Directors feel that in arranging the charge for messages, it will be necessary to proceed experimentally, their desire being to discover the lowest charge at which the cable can be kept fully and usefully employed until it may be possible, by means of additional cables and improved appliances, so to increase the rate of transmission as thereby to gradually render it possible to popularise the tariff, which can only be done by extending the working powers of the Company. The annexed regulations as to tariff have therefore been determined on in the first instance. The Directors have thought it would add much to public convenience to make a universal charge for each of the great telegraphing sections of the world, thus relieving those who use the cable from all calculations as to local charges, the payment of all which is included in the charges made by the Atlantic Telegraph Company, for which they undertake to defray the whole cost of transmission from the te egraph station at which the message originates to that of its destination. In thus offering a great public facility, it must be distinctly understood that the Atlantic Telegraph Company will not incur or accept any liability whatsoever, either for the due transmission of the message to the cable, or for its safe delivery at its destination; nor will they accept any liability arising from delay or stoppage by reason of any accident to the cable or the instruments. Nor will they consent to be liable for any sum whatever, under any circumstances whatever, as damages or otherwise, for loss aceruing from errors, mist kes, delays, or other causes in respect to any message entrusted to them. beyond the return of that portion of the charge aceruing to the Company out of the amount received, in case the agents of the Atlantic Telegraph Company itself shall fail in transmission of the message through the cable. PROVISIONAL CHARGES for the TRANSMISSION of MESSAGES. From any Telegraph Station in Great Britain or IrelandTo any telegraph station in America. 20 words or less, including address, date, and signature, not exceeding in all 100 letters, 20. For every additional word, not exceeding five letters, 20s. per word. The letters in all words after the first 20 will be counted and divided by five; each five or fractional remainder will be charged as a word. All messages in code or cypher will be charged double the foregoing rates. All figures intended for transmission must be written at full length, and will be charged as words. Messages destined for places beyond the range of the telegraphic system will be sent forward by mail. From any Telegraph Station in Europe To any telegraph station in America. 20 words or less, including address, date, and signature, not exceeding in all 100 letters, £21. For every additional word, not exceeding five letters, 21s. per word. The letters in all words after the first 20 will be counted and divided by five; each five or fractional remainder will be charged as a word. All messages in code or cypher will be charged double the foregoing rates. All figures intended for transmission must be written at full length, and will be charged as words. Messages destined for places beyond the range of the telegraphic system will be sent forward by mail. From any Telegraph Station in Africa, Asia, and IndiaTo any telegraph station in America. 20 words or less, including address, date, and signature, not exceeding in all 100 letters, £25. For every additional word, not exceeding five letters, 258. per word. The letters in all words after the first 20 will be counted and divided by five; each five or fractional remainder will be charged as a word. All messages in code or cypher will be charged double the foregoing rates. All figures intended for transmission must be written in full length, and will be charged as words. Messages destined for places beyond the range of the telegraphic system will be sent forward by mail. By Order, GEORGE SAWARD, Secretary and General Superintendent. No. 12 St. Helen's place, July 1, 1865. NATIONAL TO CONSUMERS OF STEAM POWER. BOILER INSURANCE COMPANY (Limited), 145, Cheapside, London, and 22, St. Ann's-square, Manchester. Inspection and Insurance of Land and Marine Boilers effected. The attention of owners of steam boi'ers is called to Smith's Patent Fusible Plug, as used in Her Majesty's Mint, and by a great number of large firms. This plug is the exclusive property of the Company. G. HOWARD FENWICK, Managing Director. J. H. TILLY, Secretary. PERFECT VENTILATION WITHOUT DUST OR DRAUGHT IS OBTAINED BY FLEXEN'S PATENT DRAUGHTLESS VENTILATOR. Used in most of the leading establishments in London, requires no alteration in the Sash, and can be fitted without the least injury to either Sash or Frame. Office-46, SKINNER STREET, SNOW HILL, E.C. Where Models can be seen, references given, and all particulars obtained. COLLIERY OWNERS, &c. SECTIONS and PRICES forwarded on application, for Boiler, Bridge. Boat, and Ship Plates; Angle, Tee, Beam, Girder, Joist, and Desk Iron, of all sizes; Sheet Iron. Plain, Corrugated, or Galvanised; Wire Rods for drawing. or telegraph, or fencing: Black or Galvanised Wire Ropes: Permanent, Colliery, or Tram Rails; Hoop Iron, Nail Rods. Slit Nut Iron, Gutter, Bevelled, Taper, Convex. Half Round, Sash, Tyre, and all descriptions of Faney Iron; Bar Iron of all sizes; Wrought-iron Forgings, Castings, and Railway Material of every description. JOHN HORSLEY, Staffordshire Iron Agency Office, 2, ST. ANN'S-SQUARE, MANCHESTER. The COUNCIL MEDAL of the Great Exhibition, 1851.TWO PRIZE MEDALS of the International Exhibition, 1862, were awarded to CHARLES MACINTOSH & CO. INDIA-RUBBER VALVES FOR STEAM HOSE and TUBE for Brewers and Agricultural purposes.-Expla aatory Drawings and information as to the best modes of fitting and arranging the above, and all other Mechanical Applications of VULCANISED INDIA-RUBBER, are furnished post free. Works-CAMBRIDGE STREET, MANCHESTER. Wholesale Warehouse-3, CANNON STREET WEST, LONDON,E.C. (C. M. & CO.'S ONLY ESTABLISHMENTS.) MILLOWNERS, &c. GUTTA-PERCHA MILL BANDS. THE GUTTA-PERCHA COMPANY beg to state that the increasing demand for the Gutta-Percha Strapping for Driving-bands, Lathe-straps, &c., fully justifies the strong recommendations they have every where received. Their durability and strength-permanent contractibility and uniformity of substance-their non-susceptibility of injury from contact with oils, grease, acids, alkalies, or water-and the facility with which the only joint required can be made in bands of from 200 ft. to 300 ft. long--render them superior to leather for almost all working purposes and decidedly more economical. RON CASTINGS, of First-rate Quality, for bearing our testimony to the advantages, both as regards Machinery and other purposes, Iron Roofing and every description of Smith and Founders' work.-JAS. HAYWOOD, jun., Phoenix Foundry, Derby THE LONDON DRAWING ASSOCIA HE LONDON DRAWING ASSOCIA and General Drawing, Designs, Maps, Plans, Tracings, &c. &c., 7 Duke-street, Adelphi, London. Enclose Stamp for Prospectus. FREDERIC YOUNG, Manager. BLASTING. AS NOW ADAPTED BY LENK'S PROCESS. IS THE CHEAPEST AND SAFEST EXPLO- economy and saving of time, effected by the use of your Patent Gutta Percha Bands in lieu of Leather Straps. The stoppage of one portion of our works through the failing of the leather strap used to be of daily occurrence-but with this annoyance we are now never troubled. We have had these straps in operation for nearly three years, and are assured by our engineer that they effect a saving to us of at least THIRTY POUNDS a year." From JAMES ABERNETHY and Co., Fury Hill Foundry, Aberdeen. "We have now bad Gutta-Percha Bands working here for three years. One of them has been driving the fan blast for our smith's shop for all that time, and for anything we see, may drive it as long again. The speed of the fan is but 1,200 per minute. We have used them with com→ plete satisfaction, driving circular saws, and in some cases where leather hands would have been quite inapplicable from damp. We have uniformly endeavoured to have the drums and pulleys so proportioned to the strain, as that there is no chance of the band slipping; and with this precaution, and taking care in using cross bands that they do not rub, we are quite satisfied that they are superior in every respect to leather-stronger at the same weight, and keeping WORKS, quite straight in working-requiring no lacings, and very seldom any repairs." 173, FENCHURCH STREET, LONDON, E.C. Manufactory-Stowmarket, Suffolk. THE MEDAL FOR 1862. The only Prize Medal awarded for Tubes and Fittings. WEDNESBURY, STAFFORDSHIRE. WAREHOUSE-81, UPPER GROUND STREET, LONDON, 8. JAMES RUSSELL & SONS, The Original Patentees and First Makers of Wrought-Iron Tubes PAPER AND ENVELOPES. ROBERTSON, BROOMAN, AND CO., The Cheapest and Largest Stock in the Kingdom at PARTRIDGE & COZEN S', Manufacturing Stationers, 192, Fleet-street, and 1, Chancery-lane. PARTRIDGE & COZENS being Paper Makers' Agents, purchasing all their papers direct from the mills, offer them to the public at one profit only," being 30 per cent, under the usual retail charges. Good Cream Laid Note Papers. 2s., 38., and 4s, per ream. yards). Measuring Books, Quantity Paper, Drawing Papers, Cartridges, Browns, &c., &c., at the lowest rates. Estimates free of charge. Carriage Paid to the Country on Orders over 208. PARTRIDGE and COZENS, 192, Fleet-street, E.C. MOREWOOD'S PATENT CONTINUOUS ROOFING SHEETS of Galvanised Iron, in ler gths of 50 to 500 ft. and upwards, by 2 ft. wide. CHEAPER THAN FELT WHEN FIXED COMPLETE. For DOWGATE DOCK, UPPER THAMES STREET LONDON, E.C.; LION WORKS, BIRMINGHAM, AND ETTINGSHALL IRON WATER POISONED BY LEADEN PIPES. The above engraving represents accurately a section of a leaden pipe, which was employed for a short time in conveying water from a well on the grounds of Mr. Dick, of Bonchurch, Isle of Wight. POISONED WATER PREVENTIBLE BY THE USE OF GUTTA-PERCHA TUBING. The Gutta Percha Company have been favoured with the following Letter: From DR. MURRAY, Hull. "It is impossible to conceive of anything more injurious or destructive to the health of the community than the use of leaden pipes for the conveyance of water. The poisonous salts of lead thereby communicated are most insidious and subtle. I hail with gratitude the substitution of GuttaPercha Tubing. I have had the leaden pipe of my own house removed, and its place supplied with one of GuttaPercha Tubing. Nothing can be better. I have also recommended it to others, who have adopted the expe dient." A VARIETY OF GUTTA-PERCHA ARTICLES, MILL BANDS TUBING SHEETS SOLES PUMP BUCKETS UNION JOINTS SUCH AS BOWLS FLASKS CURTAIN AND CORNICE RINGS SOLID FRAMES GALVANIC BATTERIES &c., &c. MANUFACTURED BY THE GUTTA-PERCHA COMPANY, PATENTEES, 18, WHARF-ROAD, CITY-ROAD, LONDON, AND SOLD BY THEIR WHOLESALE DEALERS IN TOWN AND COUNTRY. Printed for the Proprietor at the Office, No. 1, McLean's buildings, Great New-street, in the Parish of St. Bride in the City of London; and Published by RICHARD ARCHIBALD BROOMAN at the Office of the MFCHANICS' MAGAZINE, 166, Fleet-street, in the Parish of St. Dunstan-in-the-West, in the County of Middleses. Friday, July 21, 1865. THE AND Journal of Engineering, Agricultural Machinery, Manufactures, and Shipbuilding. LONDON: FRIDAY, JULY 28, 1865. The Atlantic Telegraph The History of Aerostation 47 Paper Pipes 49 Reverberatory Furnaces 49 БО Photographic Tents 51 Clyde Steam Dredgers... 51 Preece's Electric Signals 62 Scientifle Witnesses 53 53 New Connon 53 54 OYAL CORNWALL POLYTECHNIC SOCIETY, for the encouragement of Science, and the Fine and Industrial Arts. The 33rd ANNUAL EXHIBITION of this Society will be held in their Hall, Falmouth, on WEDNESDAY, August 30th, 1865, and following days. Silver and other medals and money prizes will be awarded in the following departments, viz.:-Mechanic 1. Mining, Naval Architecture, Professional Fine Arts, Photography, Statisties, &c., &c., &c. Inventors, manufacturers, artists, and others who may be desirous of exhibiting, are requested to communicate with the Secretary. Any further information as to time, rules, transit of articles, lists of prizes, and premiums, &c., &c, will be forwarded on application. No charge for space. Space or insertion in the catalogue or judge's books cannot be guaranteed after Tuesday, August 22nd. Communications should be addressed to SYDNEY HODGES, Secretary, Polytechnic Hall, Falmouth. July 3rd, 1865. ROYAL POLYTECHNIC. The Marvellous Birds-Mdlle, Van der Meersch, from Paris, alternato mornings and evenings at 3.30 and 8.30, commencing August 1st, at 8.30. Proteus," this new and wonderful Optical Insion in Professor Pepper's entertainment, daily at 2 and 7.30,Will this do? or, Randoin Recollections of English History," by Mr. G. Buckland, at 4 and 9.-Lecture by J. L. King, Esq., on Galibert's "Appareils Respirateurs."-Pictorial Novelty and Orignality, the Holy places at Mecca and Medina contrasted with those at Bethlehem and Jerusalem, with two new Ghost Scenes, (J. H. Pepper and II. Direks joint inventors.)-Open from 12 to 5, and 7 to 10.-Admission to the whole, 1s. PEACE TO BUILDERS. Trinity House, London, E.C, THIS Corporation, being desirous of obtain ing TENDERS for the ERECTION of new LIGHTHOUSES, Lightkeepers' Dwellings, and other works. at the Island of Portland, in the county of Dorset, bereby GIVE NOTICE that the plaus, specification, form of tender, and conditions of contract are deposited at this House and at the Portland Upper Lighthouse, and may be inspected on any day between the hours of 10 o'clock a.m. and 4 p.m. Tenders must be delivered at this House on or before Monday, 14th August next, addressed to the Secretary, and marked "PortLand-ender for New Lighthouses, and Lightkeepers' Dwellings, &c," and no tender will be entertained that is not made on the form provided.] The Corporation do not pledge themselves to accept the lowest or any tender. IMPROVEMENT consists in its having only a single spring, which is strong enough to take the lift of the loaded cage; to overhaul the broken rope, however distant the fracture may be; and yet so conditioned that it cannot bring the Clutches into play till the rope is broken. It is an ordinary carriage spring, and can be replaced, when needed, at any coach-work. Makers or inventors of safety cages who may wish to combine the Safety Clutch with their own improvements are respectfully informed that liberty to do so will be granted an easy terms.-Apply to the Patentee, Robert Aytoun, 3, Fettes-row, Edinburgh. THE "FIELD" BOILER is the most economical steam boiler both as to space, fuel, and price. It is equally adapted for stationory, portable, and marine engines. IlInstrations and full particulars may be obtained by applying to Mr. LEWIS OLRICK, Consulting Engineer, 27, Leadenhall-street, London, EC. WANTED, an experienced MECHANI CAL DRAUGHTSMAN. Apply by letter in the first, instance, stating age, salary expected, and where employed, addressed to the Horseley Company, Tipton, Staffordshire. SALE, a very powerful SQUEEZER; DRAWINGS, PLANS, TRACINGS, &c., straighten a bar 6 in. diameter, Also a pair of SHIPBUILDERS' For particulars, apply to Geo. Underwood, Sefton Foundry, Liver- HOMAS Y. GREENER, Inspector Accuracy and Despatch, on Moderate Terms, by MESSER and THORPE, Mechanical and General Draughtsmen, 84, Hatton-garden, E.C. N.B.-M. and T. ar> thoroughly Practical Engineers. CORRUGATED IRON WORKS. ESTABLISHED 1829. All kinds of Iron Roofs, Buildings, Workshops, Storehouses, Churches, Schools, &c., for home or export. Hot-water Apparatus for Horticultural and other Buildings. Apply to W. H. GRIFFITH (late R. WALKER), Grange-road, Bermondsev, 8.E. TO BOILER MAKERS, BRIDGE AND IRON ARTYN'S High-pressure GAUGE TUBES HENRY MARTYN'S Price Lists on application. Manufactory-61, Hercules-buildings, Lambeth, London, S. HEEL, RACK, and SCREW CUTTING. WHEELS cut to any size or number of teeth; also racks of any MEDLOCK-STREET, CHARLES-STREET, OXFORD-STREET, MANCHESTER, BRASS FOUNDER, COPPERSMITH, &c. Manufacturer of Brass, Copper, and Gun Metal Fittings, required by Engineers, Calico Printers, Plumbers, Brewers, &c., and every description of Brewing Coppers, Stills, Worms, and Colour Pans. Anti-friction Metal in Ingots and Castings. TEAM PUMPS, for feeding boilers, Raising Water, Turning Auxiliary Power, &c.-Sizes from 2 to 12 ins. PORTABLE STEAM ENGINES from 4 horse-power and upwards, fitted to ordinary Horizontal Multitubular Boilers. FERENTERS, MATHEMATICAL DRAWING INSTRUMENTS, SCALES, TAPES, CHAINS, T-SQUARES, RULES, &c.-JOHN ARCHBUTT and SONS, 201, Westminster-bridge-road, Lambeth, near Astley's Theatre, respectfully inform the public that their Illustrated Price List can be forwarded free on application. The prices will be found remarkably low. Every article warranted. Second-hand instruments, of all kinds, by the best makers, always in stock. OT-PRESSED NUTS Made PATENT EMBEDDED STEEL AND INDIA-RUBBER SPRINGS for Railway Carriages, Locomotive Engines, Buffers, &c., possess greatly-increased power, as compared with the ordinary India Rubber Springs; are more uniform in their action, counteract the compressibility of India-Rubber alone, and are not liable to break from sudden concussion, or the inequalities of the permanent way. Prices and further particulars may be had on application to the by Troughton at 1s. 6d. Squares, 12 in., 38. 6d. ; 36 in.. 3s.: 30 in., 2s.9d. ; 24 in., 2s. 6d. ; 18 in., 28.; 15 in., 1s. 9d.; 12 in., 1s. 6d. Photographic Camera Lenses, Magic Lanterns, Slides, Dis solving View Apparatus, Microscopes, Telescopes, Opera, Race, and Tourists' Glasses, by Voigtlander, Ross, Dolland, and others. Instruments bought or exchanged. SCHIELE and CO., ENGINEERS, &c., NGUS'S GUTTA-PERCHA and INDIA-C., CLARENCE BUILDINGS, BOOTH ST., and CHORLTON RUBBER DEPOT, 87, GREY-STREET, NEWCASTLE.- BELL ALUMINIUM. WORKS, MANCHESTER, Sole Patentees and Makers of C. Schiele and Co.'s Excelsior Turbines, Fans, &c.-Patents of 1863. For the Opinions of the Press on the Excelsior Turbine see Manchester Guardian, Oct. 13, 1863: Manchester Examiner and Times, Oct. 24. 1863; Manchester Courier, Oct. 24, 1863; Salford Weekly News, Oct. 24, 1863; Preston Guardian, Oct. 24, 1863: Manchester Examiner and Times, April 30, 1861; Salford Weekly News, April 30, 1864; Manchester Courier, May 7, 184; Mark and adapted for varying supplies of water. BROTHERS, NEWCASTLE-ON- Lane Express, Dec. 12, 1864. The only Turbine made self-adjusting TYNE, beg to intimate that, having become Sole Licensees in MUIR'S PATENT FOOT LATHES, and MUIR & CO., Britannia Works, Manchester, May be inspected and Our Excelsior Fans (Patent of 1863) for Fires and Cupolas, are unequalled, also for the Ventilation of Cotton, Woollen, Flax and Silk Mills, Mines. Collieries, &c. These Fans will give a better result with a less expenditure of fuel than any other fan made. They are noiseless. TO ENGINEERS, MARINE, LOCOMOTIVE, AND OTHERS, BOILER MAKERS, IRON-SHIP AND BRIDGE BUILDERS, WARNE'S NEW PATENT FERRUGI NOUS CEMENT PACKING, applicable to Steam, Air, Water, and Gas Joints of all descriptions, Water Tanks and Repairs of Boilers, for Railway purposes, to Chairs and Fish-tail Joints, Turn Tables and Bridge Girders, and to the construction of Iron Bridges STEAM BOILERS, WOOD and HALLS generally, and of Iron Ships CHEMICAL COMPOUND for Preventing Corrosion and In- Phoenix Iron Works, Jersey-street, Manchester, March 31st, 1864 Messrs. Wood & Hall. Among the many important advantages of the PATENT FERRUGINOUS CEMENT PACKING, ale Indestructibility by either Fire, Steam, Water, or Gas; Instant and Ready Application, and great Economy of time and labour by its use for Joints, &c., in place of the ordinary Iron Cement. For all permanent Joints is can be made to set as hard as Iron, and it will Expand and Con tract in the same ratio as the metal itself. For all other Joints it ean be made sufficiently elastic for the purposes to which India rubber or other packings is applied. WILLIAM WARNE & CO., |