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tent improve ments i n steel manufacture that have had their or igin in the Edgar brou'ght from dif casts that are ferent furnaces at temperatures that vary considerably to a common tem% perature and qual ity. The contents of the hot metal one end

H C. Lowrie. 324132 Spring seat G. W. Murray. 324339 CET THE BEST AND CHEAPEST. other Patent Wood Working Machinery.PURIFIER The STOUT MEADOWOBOFT 00. 21 ANN STREET AMERICAN STEAM BOILER INSURANCE CO. NORWICH CONN. KELSEY & CO. Meriden Conn.,

Founding and Metallic Alloys. Machinists' Tools MACHINIST'S TOOLS Reduced Prices. Pond's Tools. FREE PICKET PLANING &MATCHING MOULDING MORTISING TENONINGRESAWINGSHAPING EAGLE FOOT LATHES Low OR N OLD ROLLED SHAFTING. VINEGAR HOW MADE IN BLAKE'S

Writing Ink. OLMSTED'S SPRING-TOP OILER. WATER ELEVATOR. BISHOP & GLADDEN'S CANE STRIPPER., scientific american, 1866-10-27

SOME RECENT AMERICAN PATENTS., scientific american, 1897-07-10

THE 'CLIMAX' Stereotyper and Moulding Press be in use in every printing office. See Sol. Am. Dec. 301893. Send for circular t THE J. F. W. DORMAN CO. 217 E. German Sit. Rubber Stamps Vulcanizers Stereo TYPEWRITERS. EXCHANGE Manufactory Established

Md. Information about Caveats Extensions Interferences Designs Trade ?larks; als Foreign Patents. CONSULTATIONS AND OPINIONS FREE. TO APPLY FOR A PATENT PRELIMINARY EXAMINATION REJECTED CASES. CAVEATS REISSUES. DESIGNS TRADE MARKS AND COMPOSITIONS

Steam on Common Roads. Collisions on Railways. About Making Tea. The First Artificial Fire. English Steam Plows in Louisiana., scientific american, 1870-05-14

scientific american, 1866-10-27

scientific american, 1865-12-23

QUADRUPLE COMPOUND HARMONIC MOTION. BY B. J. HOPERER QUADRUPLE HARMONIC-MOTION PENDULUM. FIGURES PRODUCED BY THE QUADRUPLE UARISONIC-MOTION PENDULUM., scientific american, 1899-04-01

GUINEA ANT EATER. A TATTOOED WHALE. small fishes: andBRUIJN'S ECHIDNA (PROECHIDNA BRIIIJND NEW GUINEA ANT EATER, scientific american, 1887-08-27

0EARDSLEE'h PATENT PLANING Tongue 15tf ACHINERY.--8. C. HILLS No. 12 Platt-st. N Foreign and American Patent Agency TO CORRESPONDENTS. A Chapter of Suggestions dm. PATENT LAWS AND GIIIDE TO INVENTORSWe BACK NUMBERS AND VOLUMES—In reply to many

The Interior of the Earth. A Chemical Apparatus for the Removal of Boiler Scale. A MAN WHO WAS STRUCK BY LIGHTNING AND LIVES. Engineering Notes., scientific american, 1903-05-30

Electrical Devices. Of Interest to Farmers. Of General Interest. Hardware. Heating and Lighting. Household Utilities. Machines and Mechanical Devices., scientific american, 1907-05-11

BISCUIT MANUFACTURE., scientific american, 1872-05-11

Stationary and Floating Revolving Iron-Clad Batteries, scientific american, 1862-05-03

ATENTS FOR SEVENTEEN YEARS! CHAS. MASON., scientific american, 64-03-12

Science Notes. Engineering Notes. Death of Elliott Coues. A Great Collection of Fossils. Preserve Your Papers., scientific american, 1900-01-06

EMERY GRINDING MACHINERY AT THE PARIS EXHIBITION. EMERY GRINDING MACHINERY. NOTES OF PATENT OFFICE DECISIONS., scientific american, 1878-08-03

scientific american, 1908-10-11

COMPETITIVE TEST OF ENGINES NEW YORK. WATER METER TEST. Test of Regulator and Valve Gear Combination Corner Park and Promenade sts THE PERIODICALS WHICH THE ARPER fiock BEAMS &GIRDERS COTTON AND WOOL SHODDY PICKERS HARTFORD CAPITAL$500000 HOME OFFICE

ODDITIES IN INVENTIONS. A DETACHABLE LINK. AN ELECTRIC SOLDERING IRON. A BICYCLE UMBRELLA-FAN. MECHANICAL TOY. Brief Notes Concerning Patents. HOIST., scientific american, 1902-11-08

SEPTEMBER 9 18761, scientific american, 76-09-09

Hydraulic grading. 2. Bank revetment in progress. 3. Sinking drift by pumping sand upon it. 4. Sinking sub-aqueous mat. 5. Load of brush and weaving barge. 6. Ballasting sub-aqueous mat. IL S. GOVERNMENT IMPROVEMENTS ON THE MISSISSIPPI RIVER AT PLUM

SAVE WATER AND MONEY MATIC FLOAT VALVE parties. TRY SQUARES lir 6 0440000 ROUND OR SQUARE BASE SKINNER Improved PLANER SKINNER CHUCK CO. Church St. New Britain Conn. THE OBER LATHES 'QUEEN' ARCHITECT LEVEL $50 Improved Transits & Levels Philadelphia.

Let Us Arrange a Month's Test of Sp for Your Automobile The Prest-O-Lite Co. EXPERIENCE 'tigress Munn & Co. 363 Broadway New York A Popular LL GIN ELGIN NATIONAL WATCH CO. Elgin III. PATENTS TRADE MARKS DESIGNS COPYRIGHTS &C. e' THE 'LEADER. CLAUDE

NEW BOOKS AND PUBLICATIONS. COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS Letters Patent of the United States were Granted In the Week Ending May 28 1878 AND EACH BEARING THAT DATE., scientific american, 1878-08-10

WARDWELL'S ADJUSTABLE BENCH JACK. IMPROVED COOKING VESSEL. Yankee Notions. WARD WELL'S ADJUSTABLE BENCH JACK. IMPROVED MALLET. Skampfjelding., scientific american, 1874-01-24

SEPTEMBER 21 1867. wee Chemistry of a Cup of Tea., scientific american, 1867-09-21

Int WINTERBURN1 REGULATOR FOR OIL STOVE WICKS. ir IMPROVED DIFFERENTIAL PRESSURE REGULATOR. IMPROVED FARM GATE. Irradiation. Natural from Artificial Butter. Charcoal Pencils. WINTERBURN'S REGULATOR FOR OIL STOVE WICKS. AND'S DIFFERENTIAL PRESSURE

Zarresponbence. Use of Scientific Terms. Protection Against Electric Storms. THE PEARL-BUTTON INDUSTRY OF THE MISSISSIPPI RIVER., scientific american, 1899-08-05

Madder. MATHEW THE CUBAN MONKEY The Nose the Source of all our Woes. MATHEW THE CUBAN MONKEY. Kerosene 0 as an A nti Incrustator for Steam Boilers., scientific american, 1888-02-04

Valuable Practical Recipes. How French Ladies Bathe. Wanted a better Plow and a better Reaper and Mower., scientific american, 1865-02-25

. PROGRESS OF FOREIGN INVENTION. CHEMICAL EXPERIMENTS. -vs 41e.THE 'WORM' ON THE AILANTHUS., scientific american, 1870-09-24

Improved Passenger Register and Recorder. Improved Joiners' Floor Clamp. Improved Wagon Springs. Improved WhilDetree. Improved Furniture Spring. Improved Bracelet Fastening. Boilers. Improved Washing Machine. Improved Frame for Hot Air Registers.

REMARKABLE RAIL W A Y COLLISION IN IOWA. Dangers to Street Car Motors by Lightning. REMARKABLE RAILWAY COLLISION IN IOWA., scientific american, 1891-01-03

THE GREAT TELESCOPE AT THE PARIS EXPOSITION OF 1900. The New York Academy of Sciences- 1899 Reception. The Current Supplement. DETAILS OF THE GREAT TELESCOPE. 4 ToYET carries along the tube through the transmission rod., scientific american,

34° THE 81.000 PRIZE. his legs., scientific american, 1860-11-24

LOOMIS CO Tiffin. Ohio. PROVIDENCE It. I. 1 TYPEWHEELE.STODELS &EXPERIMENTAL WORK.IMAU.WCHINERY FisH ARBORUNDUM IA OND OWDE FORM rW° It will pay you t THE BICYCLE : ITS INFLUENCE IN SMALL MOTORS for All Purposes. The best manufactured. Specially

Lessons of the Baltimore fire. The Farmers' National Bank Building. The Three Upper Floors (Non-Fireproofed) Burned Out. The First Story (Fireproofed) was unharmed, not even the glass of front door being broken. Maryland Trust Building left standing

AN IMPROVED ROTARY PUMP. The Height of Trees in Summer and Winter. A CORK TIRE FOR BICYCLES. BURTON'S BICYCLE TIRE. .1. THE WORDEN HICKORY FRAME BICYCLE. Montreal Bridge. A NOVEL THREE CRANK BICYCLE. MERRILL'S BICYCLE. Starch Luster. ATTENHOFER'S

Street New York. 0li EAt FOSSIL MEAL TUBES FOSSIL MEAL COMPOUND New York. Telegraph and Electrical SPEAKING TELEPHONES. THE AMERICAN ItELL TELEPHoNE COMPANY AMERICA N II ELL TELEPH ONE CORIPA N Y. Express. Money carefully placed inside of envelopes

OIL WELL SUPPLY Co. FOOT POWER LATHES CHANDLER'S Micrometer Holder MUNN diz CO. Publishers 361 Broadway New York. ORDINARY RATES. Inside Page. each insertion75 cents a line Back Page each insertionENGINE 'Star. Screw Otd LATHE MONARCH CYCLE CO. ‘ 4

AN AIR COMPRESSOR FOR VARIABLE PRESSURES. Our Foreign Flour Trade. Changes in the German Artillery. Bishop Rock Lighthouse Bo:ler Pressure 0 lbs. Receiver Vacuum top i Mean effective Press. DAVEY'S MOTOR AND AIR COMPRESSOR FOR VARIABLE PRESSURES. Is

Extinguishing Fire. Gold Xining in China. IlIa:gazthe Gun Invented in 1775., scientific american, 1877-01-27

III CIENTIFIC MERICA Vol. XCVNo. 16. L 53.00 A YEAR., scientific american, 1906-10-20

THE DEATH OF PROF. R. H. THURSTON. THE HEAVENS IN NOVEMBER. THE LATE PROF. R. H. THURSTON., scientific american, 1903-11-07

THE HEMATITE IRON MINES OF ENGLAND. SHELDON'S AUXILIARY CAR SEAT. Salt. Tunnel at Rio de Janeiro. ROPE NUE g E tildttokiige „ft 'ss 2 Scale NOTE IVP4 PIT N.141: OrOTION SBEWISI ROW THE ORE IN THE LOWER CARSONIFEROLIO ROVES IS COT OTF DV THP COAL

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES Vol. Improvement in Devices for Raising; Liquids. STEAM CONDENSING AND WATER ELEVAT REYNOLDS' ING ENGINE., scientific american, 1868-12-02

Of General Interest. Household Utilities. Machines and Mechanical Devices. BliSilleSS and Personal Wants., scientific american, 1904-11-26

IMPORTANT TO INVENTORS NEW ARRANGEMENT. KIRLIN'S IMPROVED CORN-PLANTER., scientific american, 1860-01-07

Effect of the Earthquake Shock in Constantinople. Electric Mail Cars in Brooklyn N. Y.414 An Improved Alloy. TERMS FOR THE SCIENTIFIC AMERICAN. SCIENTIFIC AMERICAN SUPPLEMENT For the Week Ending August1894. THE BROOKLYN MEETING OF THE AMERICAN

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. WEEKLY., scientific american, 1895-12-14

dition., scientific american, 1867-09-07

first seen near the town of Rindge on May 30. The fol lowing day it again floated off about two miles down the lake but on June 3 returned to its first place of anchorage The island covers six acresand is in a lake covering an area New Property of

Notice. THE PROGRESS OF INVENTION DURING THE PAST FIFTY YEARS. Oorresponaence. X Ray Experiments. The Utility of Colored Skin. heat is a little less in Europeans than in Malays. Study of a Swiss Avalanche. traversed by them can discharge electric

TAKE THE NICKEL PLATE ROAD FOR THE ST. LOUIS FAIR. PALMER The Franklin Dynam Jump Spark _ E. S. RITCHIE & SONS Brookline Mass DRILLING Valuable Books +Ir 15000 Receipts. 734 Pages. in Half Morocc Post Free. 900 New Formulas. 1901 APPENDIX. THE SALE

The Effect of Great Cold on Animalcules Worms Insects and Other Animals. BY JANES WEIR JR. M.D. A Trolley Hide One Hundred and Twenty-four Miles Long., scientific american, 1897-10-11

Week Ending May 27 1893. TESTS AND AWARDS AT THE WORLD'S FAIR. ELECTRICAL ENGINEERING AS A PROFESSION., scientific american, 1893-05-27

A Few Problems for Inventors. Brief Notes Concerning Patents. open draw water covering the tracks or the presence Arts Palace at the World's Fair., scientific american, 1903-12-19

Standard of the World SHIPPED YOV FREE FOR INSPECTION THE ITHACA CABINET CLOCK ALL CHARGES PREPAID WARREN'S OOPIN A MONEY MAKER LANGUAGES PRINTING COMPANY Knock Down Boa.ts Patio us Sun-Proof Anna Catch New Folding BROWNIES. STICK, scientific

ater Ntor BOLGIANO'S LITTLE GIANT Brainard Co-Operative Building & Loan Association Brainard Minn. Supt. St. Lawrence State Hopital Ogdensburg New York writes: 'We Felt & Tarrant Mfg. Co. BRANCH OFFICE: RECENTLY PUBLISHED. 361 Broadway. New York.

MARCH 13 1897.1 AN ELECTRIC HANSOM. A FOLDING BICYCLE. THE DWYER FOLDING BICYCLE. THE NEW ELECTRIC HANSOM CABS IN USE IN NEW YORK CITY, scientific american, 97-03-13

INDEX OF INVENTIONS United States were Granted June 9 1885 Firearm magazine H. S. Maxim 319595 For which Letters Patent of the, scientific american, 1885-06-27

DEATH OF MR. BUTTERWORTH. AMERICAN ASSOCIATION OF INVENTORS AND MANUFACTURERS. THE MOODUS NOISES. THE LATE HON. BENJAMIN BUTTERWORTH., scientific american, 1898-01-29

SCIENTIFIC AMERICAN ESTABLISHED 1845 Published Weekly at No. 361 Broa.dwa.y. New York THE NEW STEEL. AMERICAN AND BRITISH TURBINES. THE SECOND SEA POWER—AMERICA OR GERMANY, -1909-03-06

A LARGE STATIC MACHINE FOR X-RAY WORK. BY FRANCIS H. WILLIAMS M.D. BOSTON. Fig. IDETAILS OF ADJUSTABLE MULTIPLE SPARK-GAP. Fig. SMAMMOTH STATIC MACHINE FOR X-RAY WORK., scientific american, 1899-06-17

PHRENOLOGY AND SPIRITUALISM.A LIVELY DISCUSSION. Duration of Animal Life. Curious Egg., scientific american, 1871-07-15

Building Edition of Scientific American. (Established 1SS5.) Export Edition ot the Scientific American (Established IS7S) Contents. TABLE OF CONTENTS OF Scientific American Supplement No. THE NEW YORK STATE CANALS BLUNDER. WHY ARE AMERICAN FASTER

OIL! OIL!! OIL!!! PEASE'S IMPROVED OILS! 3ur Zeadjoluus ftir t)eutfd)e erfiuber. MUNN & 00, scientific american, 1868-07-29

PINE MEW PAMPHLET F081879 Sent free to those interested. Springfield 0. no Liberty St. N Y. City.OLD HICKORY CEMENT. Practical Lessons in COPE 86 MAXWELL M'F'6 CO'S BOILER FEEDERS. Address HAMILTON. OHIO. PROVIDENCE R. I. DRAWING INSTRUMENTS. Drawing

Nagano an4 gergionl. the cloth Is valtiablepliably the belt plan will be to iont zt inbentine and frame thus propelling the engine and so on alternately pushingthe Communications Received which facilitste the outlet of oil., scientific american,

DIAGRAM SHOWING RELATIVE EFFECTS OF IN-TURNING AND OUT-TURNING SCREWS. THE ADVANTAGES OF IN-TURNING SCREWS ON WARSHIPS. Further Curie Experiments With Radium. News From the British Antarctic Expedition A New Record. Volcanic Dust Falls in Georgia.

the Atlanta Exponitient New Hampsh re Earthquake., scientific american, 1896-01-18

inch guns could be loaded and discharged every forty JAMES BUCHANAN EADS., scientific american, 1887-04-23

scientific american, 1866-06-09

Molecular Velocity. Fig. 2THE SHUTTER. Flared Coal Tar for Waterproofing. THE EXTERIOR. THE HETHERINGTON MAGAZINE HAND CAME RA., scientific american, 1892-04-23

COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS Letters Patent of the United states Were Granted in the Week Ending February 8 1876 AND EACH BEARING THAT DATE., scientific american, 76-03-11

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. LXXIXNo. .1 ESTABLISHED 1945. [$3.00 A TEAR. Wasirvr. WAR DEPARTMENT EXHIBIT PORTION OF FISH COMMISSION EXHIBIT—ENTRANCE TO GROTTO. DOME OF THE

THE TRIAL OF THE HUNDRED-TON GUN. 46 IA SELF-SETTING RAT TRAP. More Blue Glass Skeptics. Hard Times for Ironworkers in Germany. Remarkable Glassware. NEW MANUFACTURE OF RUBBER ARTICLES. THE TRIAL OF THE HUNDRED-TON GUN. i i, scientific american,

water-proof elastic sole as made with the supporting projections extending from its lower surface and with passages around and between such and holes leading therefrom up through the sole the whole being substantially as described. first claimed.

THE NEW HUNT BICYCLE SADDLES. For Facilitating Examination of Inventions. NEW TYPES OF BICYCLE SADDLES. A MEXICAN TERRA COTTA STATUE., scientific american, 1898-05-21

Restarting Simple Positive. Eagle Lubricator Co. 108 Canal Street CLEVELAND 0. STOW FLEXIBLE SHAFT. BINCHAMTON N. Y. 45000 SOLD. Sarni J. Shinier .k tiros OIL WELL SUPPLY CO. WARP DYEING AND SIZING MACHINES PATENT RUBBER COVERED sgUEEZE ROLLS POWER

PULLMAN CARS IN RAILROAD ACCIDENTS. Practically Uninjured. THE NEW STAGE OF THE METROPOLITAN OPERA HOUSE. THE NEW STAGE OF THE METROPOLITAN OPERA HOUSE., scientific american, 1904-02-06

Science Notes. Engineering NoSes. Electrical Notes., scientific american, 1899-11-18

Our Washington Correspondence. 4 0 00 The American Middlings Purifier Company. A Rich Silver Mine., scientific american, 1877-11-03

KAUFMAN'S HOME-MADE CORN-BROOM. PLATT AND ROSECRANS'S STAR BURNER. THE BEST MECHANICAL PAPER IN THE WORLD EIGHTEENTH YEAR. VOLUME VINEW SERUM. MUNN & CO. Publishers 'NOM THE ItEAM 55535 OP JOHN A. CRAY., scientific american, 1862-01-11

Sensitive Galvanometer. Glorresponbence. Life Saving Telephones—A Good Suggestion. How to Cut Glass by Means of Heat. GEO. M. TURNER. Wooden vs. Metallic Ties. An American Blast Furnace in England. Palladium Plating., scientific american,

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. XXXVILL—No. 23. 3.20 per Annum. 717Inz BRUSH MAKING BY MACHINERY. BRUSH MAKING BY MACHINERY., scientific american, 1878-06-08

RECENTLY PATENTED INVENTIONS. Engineering. Rail way Appliances. Electrical. TRACK CIRCUIT RAIL JOINTGeorge Mining Etc. Mechanical. Agricultural. Miscellaneous. 'Z3usinesss an 'WerzanaL., scientific american, 1896-10-11

scientific american, 1895-07-13

THE EXPOSITION AT EIIDAPESTH. Torpedo Boats. One of the Evils of Natural Gas. IRussian Torpedo Boats.Indelible Stamping Ink., scientific american, 1885-07-11

Edison's New Laboratory. Automatic Sprinklers for Theaters. work.' AN INEXPENSIVE INDEX PLATE. 4 on. 124, scientific american, 1887-09-17

scientific american, 1877-04-28

Motors for Long Island Railroad. PACKING FOR STEAM-BOILER MANHOLES. SIMPLE MANHOLE PACKING. AN ANNUAL ITALIAN AUTOMOBILE CUP RACE. A NOVEL WATER WHEEL., scientific american, 1905-01-14

SCIENTIFIC AMERICAN BUILDING EDITION. agents have been around to try to sell me their rods., 1893-04-11

WATERTOWN N. Y. AND ITS WATER POWER. The Arctic Winter. The Last of the Centennial Exhibition. WATER POWER ON THE BLACK RIVER AT WATERTOWN N. Y., scientific american, 1881-08-27

Philosophy of Preserving Eggs. To Make Castings Free from Scoriae. JOHNSON'S UNIVERSAL LATHE CHUCK. The Central American States. SHEA'S PATENT BARREL AND TANK., scientific american, 1867-08-31

An Earthquake Observation. A Suggestion for Aeroplane Designers. The Lunar Rainbow. The Current Supplement. Simon Lake to Settle in Berlin., scientific american, 05-09-09

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