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and fourth prizes respectively and all are inferior to the GRAND PRIZE awarded the UNDERWOOD UNDERWOOD TYPEWRITER CO. Company Mich. THE MUSICIAN SMITH PREMIER TYPEWRITER STIRRINC PICTURES A FINE GIFT A FINE GIFT AT ANY TIME BY FRANCES PARKER postpaid

AN IMPROVED TAPPET. Dry Battery. HOW HERON SOLVED IT. The New York Belting and Packing Company. Synthesis of Ammonia. The Proposed Three Americas Railway. A SWING READILY ADJUSTABLE FOR HEIGHT. Carbonic Acid in the Air during Fogs. DRAWING SODA

PUBLISHED WEEKLY AT NO. 87 PARK ROW NEW YORK. 0. D. MUNN. A. E. BEACH. TERMS FOR THE SCIENTIFIC AMERICAN. The Scientific American Supplement Scientific American Export Edition. THE ELECTRIC LIGHTS ON BROADWAY NEW YORK. GROOVE TRACK PAVEMENT. AN

NEW PUBLICATIONS. MANUFACTURING MINING AND RAILROAD ITEMS. APPLICATIONS FOR EXTENSION OF PATENTS, scientific american, 1869-07-11

CHAPLIN TRY AND CENTER SQUARE. A New Method of Illuminating Internal Organs. AN IMPROVED BOOK CARRIAGE.; AN IMPROVED DEVICE FOR POACHING EGGS. OSTRICH FARMING IN CALIFORNIA. k hilLe 1 „ „ CHAPLIN TRY AND CENTER SQUARE. LITTLETON'S EGG POACHER.

scientific american, 1876-09-16

THE MOSCOW INDUSTRIAL EXPOSITION. EXPECTED ADVANCE IN CRUDE PETROLEUM. FRANCIS LIEBER. For Steam Fire Engines address R. J. Gould Newark N. J. For Solid Wrought-iron Beams etc. see advertisement. Ad All kinds of Presses and Dies. Bliss & Williams

American and Foreign Patent Agency. Patent Claims. 45 10 REAT REDUCTION IN PRICEThemost Mem. AD Terms of Advertising:, scientific american, 1851-07-26

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. LXXVNo. 12. 4 a I Entered at the Post Office of New York N. Y. as Second Class matter. Copyright Mt by Munn & Co. THE COLUMBIA RIVER SALMON FISHERIES.

scientific american, 1869-10-30

ENGINEERING INVENTIONS. 464 1 IMPROVED POCKET KNIFE. IMPROVED POCKET KNIFE. IMPROVED BOOK REST. On Sulphurous Acid Considered as an Oxidizing Agent. BY MR. ANTONY GUYARD (HUGO TAMM). CENTRIFUGAL EXTRACTOR FOR CANE MICE. BURGESS' CENTRIFUGAL

A. WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. XXXIIINo.16.1 $3.20 per Annum. BORING THE TRUNNION COIL OF AN EIGHTY-TUN GUN, scientific american, 1875-10-16

FEBRUARY II 1882. Manufacture of Oxygen Gas. Wild Beasts and Snakes in India. Consolidation of Torpedo Interests. Electricity from Crystals. The Cola Nut. The Waukegan Artesian Well., scientific american, 1882-02-11

UPRICHT DRILL. Wanted in all important places of the United States BFWNSVIGA GRIMME NATALIS & CO. Braunschweig Germany. If you want the best CHUCKS buy Westoott's Westcott Chuck Co. Oneida N. Y. S. A. WHY? WHY? OLACIER IMPROVED They have been

Inside Page each insertion - 75 cents a line. Back Page each insertion51.00 a Hue. A LIVE BUSINESS MAN. BIBB'SFire-Place Heaters Cigar Box Lumber The Best in the World. SPANISII CJET)A_YI GEO. W. READ & CO. 1S6 to '200 Lewis Street N. Y BIG PAY EMERY

much slower than Normal Constipation. Symptoms Telephones. JAPANESE ART MANUFACTURES. and of all newsdealers. MARYLAND INSTITUTE be held this Fall commencing October 2d and continu MARYLAND INSTITUTE Baltimore Md. 7 AYER & SON'S MANUAL EXPLOSIVE

SCIENTIFIC AMERICAN: By Munn & Company. ISERKS$6 a year—$1 In advance and the remainder In 6 months. SPRING IS BEARING BACK HER RO. SE S. CORSETS. RAIL ROAD NEWS. Cheshire Railroad. Connexion of the Providence and Stoning toil Railroads. Northern

Don't Leave a Legitimate Business for Financiering. ROBERTSON'S IRON FENCE. A NON-RETREATING BUNSEN BURNER. The Purification of Water. aThe Treatment ot Diphtheria., scientific american, 1875-12-18

Scalos &animates Portables Hoisiers. Pump ers. Sowing and ROat utfits. Combined Gasoline Gas Kerosene. State Power Needs. George White Company Fine Experimental Machinery A Few Things That We Can D Office and Works TAPES AND RULES Saginaw Mich U.S.

Destruction of our Elms. To Tan and Color Sheepskins with Wool on. AN IMPROVED WHEEL FENDER FOR CARRIAGES. ROGERS & STENZ'S WHEEL FENDER FOR CARRIAGES. RATHMANNS' RAILWAY CROSSING ALARM SIGNAL. Progress of the Ship Canal between Manchester and

Electrical Destruction of Grass. Moving Pictures of Growing Plants. The Expiration of the Eads Jetty Contract. Miscellaneous Notes and Receipts. kunst. Science Notes. they choose., scientific american, 1899-07-22

Labor in New York City. The Welding of Metals at Low Temperatures. 2.25 Railway Notes. A Universal International Exhibition of One. IA 4II Reporting Machine. A New Method of Planting Telegraph Poles. Simple Mode of Silvering Metals., scientific

ISHERWOOD'S COG-WHEEL PROPELLER ENGINE--AN IN TERESTING COMPARISON. Delicious Coffee. Probable 17ses of the Telegraph. Boring Rock With an Eight Tun Drill., scientific american, 1867-10-26

How to Obtain the Metal Aluminum. Electricity the Cause of Waterspouts—A New Theory. California Fisheries., scientific american, 56-06-28

Valuable Books J UST PUBLISHED Scientific American Reference Book Plates. Price .50 postpaid Home Mechanics for Amateurs TWENTY-THIRD EDITION EXPERIMENTAL SCIENCE. By GEORGE . HOPKINS REVISED and ENLARGED EDITION Queries. 5. 15000 Receipts. 734

scientific american, 1872-04-06

THE WORLD'S COLUMBIAN EXPOSITION—STATE BUILDINGS. THE WORLD'S COLUMBIAN EXPOSITION—STATE BUILDINGS. High Railway Speeds. Boat Sunk by a Shark., scientific american, 1893-09-02

GOUX'S CIRCULATION BOLT CUTTER LUBRICATORS. IRON STEAMSHIP BUILDERS. MARINE ENGINES BOILERS. ANI) BUILD ERS OF COMPOUND ENGINES WIRE ROPE. Safes anal Mechanical Supplies Norwich Conn. THE AMERICAN DIAMOND DRILL CO No. Ul Liberty St. New York Swain

RECENTLY PATENTED INVENTIONS. NEW BOOKS AND PUBLICATIONS., scientific american, 1896-08-11

SCIENTIFIC AMERICAN No. 361 Broa.dwa.y New York LESSONS OF THE JAPANESE WAR. PERFORMANCE OF FRENCH AND AMERICAN LOCOMOTIVES COMPARED., 1905-01-14

HORSENAIL MAKING IN LONDON. ON INSTINCT. Reducing Bones., scientific american, 1872-11-23

LETTER . FROM PROFESSOR R. H. THIIRSTON--LAST LETTER OF THE SERIES. Black Wood Varnish. The White Grub. The Recent Strike in London. Transferring Pencil Drawings on Paper to Other Paper., scientific american, 1872-10-05

SCIENTIFIC AMERICAN. 395 Anecdote of D'Alembert. Sam Patch Outdone. False Standard of Female Beauty. Compressed Air Locomotion. Hollow Shafts. Indelible Ink. Vacuums. Time and Thunder. immensity of the Universe. The Wiclow's Daughter. Loss of a

CONVENIENCE. THE NEW OTTO SILENT GAS ENGINE. 614 to 626 W. 24th St. New York. Of Beat PlIaterIal and Warranted. Retail a per pound. Established 1843. warranted Best Cast Steel. BOSTON MASS R %EDI% SECOND-HAND ENGINES I !WARRANTED I I Baker Rotary

scientific american, 1874-11-07

scientific american, 1866-11-11

VISIT TO THF WORKS FO THE PATENT PLUM BAGO CRUCIBLE COMPANY., scientific american, 1864-06-18

A New Alloy for Bells. Money Received, scientific american, 64-09-17

USE ADAMANT WALL PLASTER It is Hard Penne and Syracuse N. Y. Patent Foot Power Machiner Complete Outfits. LA BOK SAYING Machinery Seneca Falls Mfg. Co. TEACH EIMIN impRovEDANTER INS ecf out the year at a temperature of from 84° to 36°. Con. Price

RATES OF ADVERTISING., scientific american, 1865-01-14

NEW-YORK THURSDAY MAY 14. New Inventions. Science of Mechanics. Laws of Projection. Jumble. Magic Spy Glass. II, scientific american, 1846-05-21

RECENTLY PATENTED INVENTIONS. Railway Appliances. Mechanical Appliances. Agricultural. Miscellaneous. NEW BOOKS AND PUBLICATIONS., scientific american, 1892-01-30

396, scientific american, 1868-06-11

HOUSEHOLD AMTS. Number of Useful Plants. [Improvement in Circular Saws. Discovery of Roman Remains. The American Mountain Railway. EMERSON'S PATENT PERFORATED, scientific american, 1868-02-01

THE SUBWAY SOUTH ON TREMONT STREET SHOWING CROSSING OF TRACKS INTERIOR OF THE PARK STREET STATION LOOKING NORTH AT DIFFERENT GRADES. SHOWING LOOP. THE BOYLSTON STREET STATION LOOKING DOWN TREMONT STREET THE SUBWAY BEING UNDER THE MALL AND COMMON.,

ELECTRIC IGNITERS FOR GAS ENGINES. BY GEORGE H. HOPKINS. Fig. 2GAS BURNER WITH ELECTRIC IGNITER. Japanese Demand for Cotton. RECIPROCATING FORM. REVOLVING FORM., scientific american, 1896-01-11

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES., scientific american, 1891-05-09

SEPTEMBER 19 18741 BURNISHING SURFACE COLORED PAPERS. Lawn and Pleasure Grounds. PAPER BURNISHING MACHINE. Herb Cultivation. THE FRIGATE INDEPENDENCIA AFTER THE ATTEMPTED LAUNCH., scientific american, 1874-09-19

SCIENTIFIC AMERICAN ESTA13LISHED 1845 MUNN & CO. - Editors and Proprietors Published Weekly at No. 361 Broadway. New York, 1907-06-01

Philadelphia Pa. Painless Escharotics., scientific american, 84-09-13

Improved Pea Sheller. Improved Pressure Test. Tubular Boilers. LEWIS'S PEA SHELLER., scientific american, 66-03-10

SCIENTIFIC AMERICAN ESTABLISHED 1845 Published Weekly at No. 361 Brosidwa.y. New York THE DOUBLE-DECK CAR FOR RAPID TRANSIT. KEEPING THE HEALTH OF A CITY. Clean food free from all disease germs; pure water, 1903-10-10

FEBRUARY 8 1873 Improved Wagon Brake. Improvement in the Manufacture of Horse Shoe Nails. New Process of Treating Grain. New Apparatus for Graining Gunpowder. Improvement in Oyster Tongs. Improved Cultivator Plow. Improved Manufacture of Jewelry.

No. 10-H di rect from the factory sent 'On Approv al' to be re best roll-top desk ever sold at the price. Worth at retail 'THE WIZARD'S TABLET, scientific american, 1899-12-16

MERICAN I S CENTS A COPY Vol. LXX.XVIINo., scientific american, 1902-08-09

MICSSON'S IRON-CLAD 'PASSAIC.' RECENT AMERICAN INVENTIONS. 'SOME PUMPKINS., scientific american, 1862-11-29

MAY 15 1897. SMALL CALORIC ENGINE. TWELVE WHEELED AMERICAN LOCOMOTIVE FOR THE BRAZIL RAILWAY. A MINIATURE CALORIC ENGINE. SECTIONAL VIEWS OF SMALL CALORIC ENGINE. TWELVE WHEELED AMERICAN LOCOMOTIVE FOR THE BRAZIL CENTRAL RAILWAY., scientific

An Electrically Operated Curtain Hoist. BY PRANK C. PERKINS. 00P0 Street Railroads for Conveying Freight. BY EMILE GUARINI. American Gunnery : New Record. Arcs. The Current Supplement., scientific american, 1903-05-23

THE KUILENBURG BRIDGE. STRANGE'S SAFETY HITCHING APPLIANCE. SAFETY APPLIANCE FOR RELEASING HORSES. SLED AND BOAT COMBINED. CALENDAR INKSTAND. lightning. DENNIS' GONDOLA. SLED, scientific american, 1880-06-19

No. 261 BROADWAY NEW YORK. TERMS FOR THE SCIENTIFIC AMERICAN. The Scientific American Supplement Scientific American Export Edition. Contents. THE SCIENTIFrC AMERICAN SUPPLEMENT No. 828 THE PROPAGATION OF CODFISH. THE SMOKE NUISANCE.-PROBLEMS FOR

Cylinders in which individual lobsters are confined The seven ages of a lobster. The photographs are all life size. This lobster traveled ten miles in eight days. The copper tag attached asks the finder to return it. difference in growth. SAVING THE

Meat Fly. Electricity and Gravitation. An Immense Breakwater. New Railroad Telegraph. The New American Manufacture of Metalic .Ware. St. Louis Mechanics' Institu)e. Worcester Mechanics Institute. TERMS I TERMS I TERMS $1 MEDICAL INSPIRATO R.

PROPOSED PROCESS FOR THE FIXATION OF ATMOSPHERIC NITROGEN. BY JOHN BLAIR. Hallucinations. Perils of Base Ball Playing. Music Boxes. BLAIR'S NITROGEN APPARATUS. Electric Light Photography. 174 2 0M. BLAIR'S NITROGEN APPARATUS., scientific american,

Explosion of a Boiler. Dr. Furman's Remedy for Stranger's Fever at the South. Origin of the Plow. Curiosities of Royalty. Some Causes of Disease. California Steamers and Coal. Gold on the Yellowstone. Death of an Eminent Artist. Ir tigsY, scientific

Write us stating exactly what Is required and send for illus trated catalogue. Address ARTESIAN GASOLINE For MARINE VEHICLE and BICYCLE MOTORS $18., scientific american, 1901-06-29

RECENTLY PATENTED INVENTIONS. Of General Interest. Machines and Mechanical Devices INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the Week Ending July II 1905 AND EACH BEARING THAT DATE BEST FOR YOUR BOILER STANDARD

A. WEEKLY JOURNAL OF PRACTICA T. INFORMATION. ART. SCIENCE. MECHANICS. CHEMISTRY AND MANUFACTURES. THE MANUFACTURE OF CHEMICALSWORKS OF MARTIN KALBFLEISCH'S SONS., scientific american, 1880-11-20

The Mink, scientific american, 1886-09-25

Mass, scientific american, 1866-02-11

scientific american, 1860-06-11

Artificial Coffee Beans. High Railway Speeds. To Clean a Dirty Engine., scientific american, 1891-11-21

DR. SCOTT'S ELECTRIC HAIR BRUSH. CURE NERVOUS HEADACHE IN 6 MINUTES!!CURE BILIOUS HEADACHE IN 5 MINUTES!!POSITIVELY REMOVE SCURF & DANDRUFF!!PROMPTLY ARRESTS PREMATURE GRAYNESS!! MAKES THE HAIR GROW LONG AND GLOSSY!!IMMEDIATELY SOOTHES THE WEARY

THE ADVOCATE OF INDUSTRY AND JOURNAL OF SCIENTIFIC MECHANICAL AND OTHER IMPROVEMENTS BAKER'S ROTARY PLANER THE PUBLISHED WEEKLY What is Chemistry? Gravitation and Velocity. American Lap-Welded Iron Tubes. Science in Canada. Ancient Silver Mine.,

PENDING APPLICATIONS FOR REISSUES., scientific american, 1867-12-28

THE TURRET AND BARBETTE OF A BATTLESHIP. To Get More Heat From a Radiator. Death of Ernest Kempton Adams. The New York Harbor Entrance. The Black Lily. 4G What Farmers in the Wheat Belt Need., scientific american, 1905-02-04

HORSE POWER PUMP. IMPROVED KITCHEN FURNITURE. Progress of the Sewing Machine in Europe. Useful Recipes for the Shop the Household. and the Farm. HAYWARD & CO.'S HORSE POWER PUMP. HOLT'S KITCHEN CABINET., scientific american, 1876-04-15

scientific american, 1866-06-30

Hotchkim Air Spring Forge Hammer best in Me market. Prices low. D. Friable & Co . New Haven. Ct. 6. Fruit-can ToolsFerracute W'ksBridgetonN.J. American Metaline Co. 61 Warren St. N.Y. City. For Solid Emery Wheels and Machinery send t Hydraulic

The First Modern Ship Canal. dirinlefc 31e OVestm Mud' ExpolvdccI Medea COnCe.eWr point, scientific american, 1904-03-26

A Barometer without PlereurY. Causes of Summer Diseases. A New Danger to Ocean Cables, scientific american, 1871-06-10

THE WORLD'S COLUMBIAN EXPOSITION—THE ITALIAN EXHIBIT. THE WORLD'S COLUMBIAN EXPOSITION—ITALIAN EXHIBITS—PALACE OF MANUFACTURES AND LIBERAL ARTS. Devonshire Cream. lery and is therefore badly lighted., scientific american, 1893-09-30

A JOURNAL OF PRACTICAL INFORMATION IN ART SCIENCE MECHANICS AGRICULTURE CHEMISTRY AND MANUFACTURES., scientific american, 61-09-14

scientific american, 1872-09-07

THE BURSTING OF A WATER TAN AND ITS EFFECT. General Processes and Present Condition of Electrometallurgy. rush of water. Side of one of the tanks which was found over 100 feet from its foundation. Remnants of the Lutheran church of Parkersburg after

Canadian Trepang. Straw Paper Making in Germany. Electricity in the Reduction of Low Grade Ores. below a revolving machine seven feet long and five Speed of Trains. Columbia River Boat Railroad. English Decisions Relating to Electric Light. process

SEPTEMBER 6 1879.1 The Missouri Tornado of April 14 1879. P THE SWELLED TRUNK PALM. MECHANICAL INVENTIONS. A New Weather Theory. An Explosion of Starch., scientific american, 1879-09-06

scientific american, 1903-01-17

OCTOBER 19 1895. NEW BOORS AND PUBLICATIONS. SCIENTIFIC AMERICAN TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted October 8 1895 AND EACH BEARING THAT DATE., 1895-10-19

scientific american, 1869-12-25

scientific american, 1875-04-11

A Preservative Wanted. An Incident Pertaining to the Earthquake at Savannah. Large Railway Maps. Dietetic Fallacies. DECISIONS RELATING TO PATENTS. U. S. District Court.- Northern District of Illinois. Appellate Court.-Firs District of Illinois.

Steel Rails. cess. Interesting Electrical Experiment. Wooden Nails. Green Varnish. Roaring of Aurora Borealis. The Mammoth Cave. The Fish Crow., scientific american, 1871-09-30

THE FOURTH DIMENSION SIMPLY EXPLAINED. The Essay that Won the $500 Prize Offered by a Friend of the Scientific American June 10 1909., -1909-07-03

Car That Has Proved Itself Flyer.' Model 0—$2000 For Everybody Everywhere Time and Temperature KODAK TANK gives better results than can be obtained by hand. 20 minute Development at a temperature of 65° with the The Experience is in the Tank.

INDEX OF INVENTIONS For which Letters Patent of the United States were Granted June 23 1885 AND EACH BEARING THAT DATE., scientific american, 1885-07-11

THE WEISS SYSTEM OF STREET CAR MOTORS. AN IMPROVED CAR COUPLING. BUTT'S CAR COUPLING. Running Railway Trains in England. Substitute for Gum Arable. presence of adulteration., scientific american, 1887-11-12

BY I. B. OWENS., scientific american, 05-09-09

IMPROVED HANDLE FOR SLIDING DOORS. 4 AN IMPROVED BRAKE BLOCK. Kansas Salt. Nitrogen. AN IMPROVED BUCKBOARD. LAWRENCE'S BUCKBOARD. AN IMPROVED KNIFE CLEANER. JAMIESON'S KNIFE CLEANER. VII 41LANYON'S BRAKE BLOCK., scientific american, 1889-03-30

To Color Nankeen. Olifient Gas. Explosions of Boilers. gation. New Apparatus for Drying Baggasse. Falling Walls. Petition of Inventors. The English Locomotives At Work. Cannon Balls and Locomotives. TO MECHANICS INVENTORS AND MANUFACTURERS. PREMIUM.

INVENTORS MANUFACTURERS BAIRD'S AND MACHINISTS' & ENGINEERS' Drawing Companion. THE INTERSECTION AND DEVELOPMENT OF SURFACES HE STUDY AND CONSTRUCTION OF TOOTHED GEAR APPLICATION OF SHADOWS '.) TOOTHED GEAIL-Appll. OBLIQUE PROJECTIONS. PARALLEL

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