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A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. 63.00 A YEAR. WEEKLY. ESTABLISHED 1845. i NEW YORK JULY 16 1892., scientific american, 1892-07-16

MEANS OF SECURING THEI BITS OF BENCH PLANES MACHINE FOR CONVERTING OSCILLATING MOTION INT DESIGNS. Plants in Rooms., scientific american, 1859-06-18

THE HUDSON RIVER TUNNEL. PROGRESS OF THE RAILWAY TTINNELS UNDER THE HUDSON RIVER BETWEEN NEW YORK AND NEW JERSEY., scientific american, 1887-05-21

ENGINEERING INVENTIONS. AGRICULTURAL INVENTIONS. MISCELLANEOUS INVENTIONS. A pitman or pump rod has been pa BUILDING EDITION. NOVEMBER NUMBER. 861 Broadway New York. AFTER THIRTY YEARS. 2;.3usinees anb E;eerseinal., scientific american, 1887-11-11

RECENTLY PATENTED INVENTIONS. Agricultural Implements. Electrical Apparatus. Mechanical Devices. Designs. Zlusiness an 'XI:Personal. HINTS TO CORRESPONDENTS. INDEX OF INVENTIONS For which Letters Patent of the United States were issued for the Week

Week ending January 28 1852. FRAUDULENT CLAIMS IN REISSUED PATENTS. 4S LOSSES BY FIRE IN 1881. LEFT-HANDED GENEROSITY., scientific american, 1882-01-28

for the manufacture of sulphuric acid. With the chamber furnace or retort employed he connects suitable flues or pipes to carry away the vapors in which he condenses the vola tized metals while the sulphurous vapors are carried away to suitable

I We Publish 7 Make Rubber Stamps ? GASe GASOLINE ENGINES WATER MOTORS Brass Band Instruments LYON Ii HEALY 38 Adams St. Chicago. AMERICAN STOOL CO. SENO FOR CATALOGUE. Platilling Io WOWliool Building Edition of the Scientific American MUNN & CO.

HIGH BRIDGE OVER THE NORTH SEA CANAL AT LEVENSAII., scientific american, 1895-06-22

To Our Subscribers. The Commissiocer of Patents. The Empire State. How shall I bring out my invention: Water as a Lubricator instead of OH. Steam Navigation of the Pacific. Twelve horse Engine and Boiler. Patents Granted. British Cotton Factories.

from all makers. Office 5 Dey Street New York. PATENT IMPROVED And Adjustable WILDER'S EDWARD H. HOSKIN Lowell. Mass. WOODWORTH PLANERS STEAMPUMPS 87 NASSAU ST. NEW YORK. 8nd far Ctirculare. RISDON'S IMPROVED POLISHED&DETACHABLE BUCKETS OTIS BROS. de

scientific american, 1904-03-05

NEW AGRICULTURAL INVENTIONS. AD. NEW WOODWORKING AND HOUSE AND CARRIAGE BUILDING INVENTIONS., scientific american, 1877-09-11

AUGUST 17 1895. A Primitive Tobacco Factory. Advancement in Dental Surgery—Implantation of Teeth. Insects Which Are Man's Friends. A Ferris Wheel in London., scientific american, 1895-08-17

HEAT AND LIGHT., scientific american, 1872-06-01

6 THE SCIENTIFIC AMERICAN., 1859-08-20

The Care of Steam Boilers., scientific american, 1881-01-15

scientific american, 1859-03-19

The Geological Survey of New Jersey. Injury to the Brain. Cleaning Cherry or Ash. LONDE'S METHOD OF TIMING PHOTOGRAPHIC EXPOSURES. 3REPRODUCTION OF THE SINOIDAL CURVE IN LONDE'S METHOD. LONDE'S METHOD. A photographic apparatus is focused upon the

MACFIE THE IRREPRESSIBLE UPON PATENT LAW. PATENT RIGHTS IN CONGRESS. 44 USES OF FLUOR SPAR. FLUOR SPAR IN GLASS MANUFACTURE. 4 PATENT OFFICE AFFAIRS. THE REPORT OF COL. W. A. ROEBLING CHIEF ENGI NEER OF THE N. Y. BRIDGE CO., scientific american,

Iver Johnson Safety Hammer Revolver I Iver Johnson Safety Hammerless Revolver INDUSTRIAL OPPORTUNITIES LEHIGH VALLEY RAILROAD Desirable sites for manufacturing purposes can be obtained on reasonable terms. If you want to establish a new industry or

SCIENTIFIC AMERICAN No. 361 Broadway. New York INTERNATIONAL PROTECTION OF NIAGARA FALLS. THE ENGLISH CHANNEL TUNNEL. ELECTRIC EQUIPMENT OF A GREAT RAILROAD. UNIFORMITY IN BATTLESHIPS. THE DEVELOPMENT OF AERIAL NAVIGATION FOR MILITARY PURPOSES IN

A New Comet. Three Thousand Five Hundred Miles by Railway.: Improved Watch Escapement. Improved Children's Carriage. Improved Hoof Trimmer. Improved Cross Cut Sawing Machine. Improved Carriage Door. Improved Feeder for Grinding] [Mill. Improved

Scientific American Reference Book 12mo; 516 pages; illustrated ; 6 colored plates. Price $1.50 postpaid. HE result of the queries of three generations of reader's and correspondents is crystallized in this book which has been in course of

RECENTLY PATENTED INVENTIONS. Pertaining to Apparel. Electrical Devices. Of Interest to Farmers. Of General Interest. Hardware. Heating and Lighting. Household Vtilities. Machines and Mechanical Devices. Prime Movers and Their Accessories. More

NEW BOOKS AND PUBLICATIONS., scientific american, 1878-08-31

scientific american, 1860-06-02

going list provided they are simple at a cost of $40, scientific american, 1889-12-14

The Origin of Coal. Tobacc Cotton Corn and Wheat. . IHow Wheat is Raised in Dakota. The Indians as Farmers. The Revival of Trade. 4 S'N. Good Tunneling. The Assay of Silks., scientific american, 1879-12-11

Experimental &Model Work EMENT AND ENGINEERING NEWS Chicag Ill VENTRILOQUISM HOW Manufacturers Can Increase Their Business Classified Advertising Column AMERICAN Watch it Carefully 361 Broadway New York U. S. A. DIES TOOLS SPECIAL MACHINERY & MODEL

COMMUNICATIONS RECEIVED. INDEX OF INVENTIONS Letters Jratent of the United States were Granted in the Week Ending AND EACH BEARING THAT DATE, scientific american, 1881-11-12

in Simplicity and Com pactness. Gives an Im pulse at every Revolu tion. CHICAGO AGENT: H. H. Latham 0 Monroe Street. NEW YORK AGENT. Williams & Orton Mfg. Co. 2 to 300. P. Vulcanized Asbestos Piston-Rod Packing. H. W. JOHNS MANUFACTURING CO. PIPE

The British Association. Artificial Ivory. RECENTLY PATENTED INVENTIONS. Electrical. Mechanical. ROLLER MILL SCRAPERJohn Agricultural. Miscellaneous., scientific american, 1892-09-17

weight of 9000 pounds. The hydraulic engine. An engine drives each wheel. assembled in truck chassis. A HYDRAULIC DRIVE SYSTEE, scientific american, 1908-12-12

ELECTRO-MAGNETIC ROTATION. BY HOWARD B. DAILEY. ELECTRO-MAGNETIC ROTATOR., scientific american, 1900-01-20

PUBLISHED WEEKLY AT No. 261 BROADWAY NEW YORK. 0. D. MUNN. A. E. BEACH. l'he Scientific American Supplement Scientific American Export Edition. MANUAL DEXTERITY. EARLY HISTORY OF GAS LIGHTING. Contents. THE SCIENTIFIC AMERICAN SUPPLEMENT N. 845 For

MUNN & CO. FAVORITE FIRESIDE WEEKLY WHEREIN IT EXCELS. THE BEST TALENT. Price Eight Cents. Velocipedes. 638 BROADWAY., scientific american, 1869-04-10

AUGUST 29 1903. Scientific American PURITAN MAYFLOWER ii as s' VOLUNTEER 18 18 G EN E S TA GALATEA THISTLE Sail Area 132lisqft WON BY:: 18 18 26'2' IN VALKYRIE WITHDREW 18 89' ?'Ye' D EFEN DER COLUMBIA VIG I LANT COLUMBIA VALKYRI SHAMROCK I Sail Area

'The 1876 Injector.' WM. SELLERS & CO. Phila. MACHINISTS' TOOLS. NEW HAVEN MAN IUFACTURING CO. New Haven Conn. Leffel Water Wheels Prices Greatly Reduced. James Leffel 24 C 79 Liberty Street New York. 1PA-TEN'T OLD ROLLED SHAFTING. BLISS'S AMERICAN

FEBRUARY 6 1897. THE HARLEM RIVER SPEEDWAY NEW YORK CITY. SUPPLEMENT. RAISED WESTERLY SID EWALK NORTH OF WASHINGTON BRIDGE SHOWING RETAINING WALL AND UNFINISHED ROADWAY AT GRADE. HARLEM RIVER SPEEDWAY—UNFINISHED ROADWAY SOUTH OF HIGH BRIDGE SHOWING

Vol. XVINo. Novel Methods of Extinguishing Fires. IMPROVED JOINT FOR BOILER FLUES. t MODEL MAKING. FIRE-EXTINGUISHING APPARATUS. 4o. A TRULY AMERICAN IDEA., scientific american, 1867-02-02

lS.orresponbence. WIND VORTEX IN SAILS. Eyesight of School Children. A Possible Explanation of Boiler Explosions. Coining Eclipse of the Sun. Accused of Fraud. Expense of Target Practice. THE WIRE. Vanilla Poisoning., scientific american,

RECENTLY PATENTED INVENTIONS. Pertaining to Apparel. Electrical Devices. Of Interest to Farmers. Of General Interest. Hardware. Household Utilities. Machines and Ittechanical Devices. Musical Devices. Prime Movers and Their Accessories. Railways and

AN INTERESTING REVIEW OF TEE AMERICAN PAT ENT SYSTEM. 0., scientific american, 1870-03-19

American LER HOUSE OF THE LOUISIANA PURCHASE EXPOSITION., scientific american, 1904-10-15

MUNN & CO. Editors and Proprietors. 03 00 150 05 00 0 S POISONOUS AIR IN SCHOOLS AND FACTORIES. PRACTICAL RESULTS OF THE EIGHT HOUR PLAN IN NEW YORK. FOUL AIR SIGNAL. INVERTEBRATE. BIEL THE KNOWLEDGE OF THE TRUTH., scientific american, 73-03-15

BRIDGE BUILDING—THE BRIDGE OF THE HART. FORD SPRINGFIELD AND NEW HAVEN RAIL ROAD OVER THE CONNECTICUT. New Method of Copying Pictures. MISCELLANEOUS SUMMARY. the waste may be worked into a pulp Mr paper., scientific american, 1866-06-16

The Editor of Handy Man's Workshop will be glad to receive any ANNOUNCEMENT. A CHEAPLY-CONSTRUCTED FIRELESS COOKER. BY EDWARD THORPE. A CHEAPLY-CONSTRUCTED FIRELESS COOKER. Scientific American FURNISHING THE WORKSHOPIV. BY I. G. BAYLEY. CO' KOS SA

IIIENIC ACID. THE MANUFACTURE OF BEET SUGAR. MISCELLANEOUS SUMMARY., scientific american, 1866-06-23

scientific american, 1870-10-29

NEW YORK BELTING AND PACKING CO. For Mechanical Purposes. RUBBER BELTINC Packing Hose Vulcanite Emery Wheels Rubber Mats Matting & Treads HENRY CAREY BAIRD & CO. Industrial Publishers Booksellers and Importers Three Valuable Books For MECHANICS and

Berdan's Gold Crushing Machine. The People's College. Deaths in the City Prison. Death of an Eminent Chemist. Bain. the Inventor of the Chemical Telegraph., scientific american, 1853-04-30

214 MANUFACTURING XINING MID RAILROAD ITEMS., scientific american, 1867-10-05

MECHANICS' KEYING CLAMP. ABERNETHY'S MECHANICS' KEYING CLAMP. RECLINING ROCKING CHAIR. COEN'S RECLINING ROCKING CHAIR. The Cultivation of Licorice. Casting of a Great Gun. CONVERTIBLE KEG. SCHEEL'S CONVERTIBLE KEG. END GATE FOR WAGONS. NOYES &

RECENTLY PATENTED INVENTIONS. Electrical Devices. Engineering Improvements. Hardware. Machines and Mechanical Devices. Miscellaneous. Business and Personal Wants. sary to give the number of the inquiry. MUNN it CO. Inquiry No. 4963.-For machines for

Designs Copyrights Etc. Scientific American SPECIAL MANUFACTURING THE GLOBE MACHINE 'ilk STAMPING CO. MODEL AND EXPERIMENTAL WORK. EDWARD KLEINSCHMIDT 82 W. Broadway New York Model Machinery and Experimental Work. F'rint My Own Cards axc. BIG

scientific american, 1864-05-21

The Prophylaxis and Treatment of Diphtheria. dust with their fingers which they would afterward A BOOK FINISHER'S LETTERING MACHINE. REYNOLDS' BOOK FINISHER'S MACHINE. THE HITCHCOCK LIFE GUARD FOR ELECTRIC CARS. THE HITCHCOCK LIFE GUARD FOR ELECTRIC

232 SCIENTIFIC AMERICAN. THE CLERMONT. Chemitype Printing. Improvement in the Pin Manufacture. Improvements in the Construction and SupplY (tithe Hydro.oxygen Blowpipe. BY MUNN COMPANY. A Good Paste for Books Music Sic. SCIENTIFIC AMERICAN:,

IMPORTANT LAW CASE FIRE-PROOF SAFES. Inventions Patented in England by Americans. EXTENSION NOTICES, scientific american, 1867-01-05

The New Woodward Colliery. Ingenious Finauciering. THE NEW SPANISH WAR STEAMER REINA REGENTE. Chicago Cable Roads. Over Sixty-seven Miles an Hour., scientific american, 1886-12-04

scientific american, 1883-12-11

Cycling and Heart Disease. Motor Carriages. Dnprovement In Gold Mining. Important to Millers., scientific american, 1895-11-16

312 SCIENTIFIC AMERICAN. Arrival of the Washington Steamer In England. POREIGN CORRESPONDENCE. Attantic screw-propeller steamer Wash ington. The Ten Hours' Bill. Steamboat Building In Glasgow Sic. Mechanics' institutions. A Great Undertaking.

GEMS OF QUARTZ ORIGIN. A NEW DISCOVERY IN PHYSICS. USEFULNESS OF THE SIMPLON TUNNEL., scientific american, 1897-04-10

The target afloat. Note the ship-like build of the bow Is A. Hits recorded by the British cruiser 'Essex.' battle practice target. Roving models for gunners under training at the Whale Island gunnery school. BATTLE PRACTICE IN THE BRITISH NAVY.,

ASTRONOMICAL NOTES. BY BERLIN H. WRIGHT. H.M. H.N. H.M. .0 4IAstronomical Notes. Position of Planets for May 1878. Mercury. Venus. Mars. Jupiter. Saturn. Uranus. Neptune. The Keely Motor. -st t American Anthracite for Europe. Type-Setting in Japan.

Xcitittific Amtvican. BALL BLACK & CO. Nos. 565 and 567 BROADWAY HAVE the LARGEST ASSORTMENT of Gas Fixtures Crystal Chandeliers And also to the New Styles of Imported Rims alld Relloctors WHICH THEY AREUST OPENING. SIPHON CONDENSER CO. PAGE'S Patent

MUNN & CO. Editors and Proprietors. NO_ 37 PARK ROW NEW YORK, scientific american, 1872-10-05

LATHE FOR AMATEURS AND LIGHT SHOP WORK. THE HOUSE LATHE. AN ELECTRICAL MUSIC BATON. DEVICE FOR TRIMMING TEE ENDS OF TUBES. DELGADO'S DEVICE FOR TRIMMING THE ENDS OF TUBES. 8--IVEREANIIII OF TIM BATON., scientific american, 1887-02-05

4!, scientific american, 1872-04-06

Entered at the Post Office of New York N. Y. as Second Oise Matter.][$3.00 per Year. Vol. LVII.--No. 6.1 [NEW SERIES. J II AE, scientific american, 1887-08-06

A SUCCESSFUL SOLUTION OF THE LOCOMOTIVE COUNTERBALANCE PROBLEM. OFFICIAL REGISTRATION OF PATENT ATTORNEYS. Ocean Voyage by a Stern Wheel River Steamer., scientific american, 1897-08-21

gilt of Antic Won. 53 the United States Patent Office last week. The claims may be found in the official list., scientific american, 1863-01-24

scientific american, 1877-12-29

Send for Illustrated Catalogue and Price Lid Established 1846. The Oldest Agency for Soliciting Patents in the United States. Conies of Patents]. 37 Park flow N. Y. The HOA D L Y PORTABLE STEAM ENGINE. READER AGENTS 1.2 .N; OLD ROLLED SHAFTING.

Mathematics of Bees. Petrification. Divisibility of Matter. LITERARY NOTICES. The Best Mechanical Paper 500 MECHANICAL ENGRAVINGS k. AND MECHANICS., scientific american, 1850-06-15

For best Bolt Cutter at greatly reduced prices tddress Milo Peck New Haven Conn., scientific american, 1876-04-11

RECENTLY PATENTED INVENTIONS. Electrical Apparatus. Mechanical Devices. Designs. Business and Personal Wants. sary to give the number of the inquiry. TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the

scientific american, 1867-12-28

SOUND WAVE LANTERN SLIDE AN AUTOMATIC DEVICE FOR STOPPING ENGINES. KAYE'S AUTOMATIC DEVICE FOR STOPPING ENGINES. NODES AND LOOPS. I DIAGRAMS OF SOUND WAVES. EDGE VIEW OF THE ENDLESS FILM. SERPOLLET ACETYLENE GENERATOR. SERPOLLET ACETYLENE GENERATOR.,

Y.W PUBLISHED BY MUNN & CO., scientific american, 1900-01-06

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. XXVIII.--No.213.1 NEW YORK JUNE 28 1873. ROOT'S ROTARY BLOWER MANUFACTORY., scientific american, 1873-06-28

Changes in the Appearance of Jupiter. A FUNGOID GROWTH—THE CAUSE OF WHOOPING COUGH. Sound Waves., scientific american, 1879-12-20

342 THE SCIENTIFIC AMERICAN., 1860-05-26

The Value of Fresh Air. Co-operation. Substitutes for Rubber Insulators. Albumen. Improved Heating Furnace. Improved Car Coupling. Improved Animal Clipping Machine. Improved Crosscut Sawing Machine. Improved Manufacture of Glass. Improved Cotton

NIGHT SKY—AUGUST AND SEPTEMBER. BY RICHARD A. PROCTOR. The Earthquake of August 31 and September 1. At 9% O'Clock: August 29, scientific american, 86-09-11

CHE-F00. ONE OF THE GATES OF CHE-F00. The Pasteur Institute. The Horseless Vehicle. Enlarged Photographs. SEMAPHORE POINT CHE-F00. HOTEL IN WHICH THE TREATY OF PEACE BETWEEN CHINA AND JAPAN WAS RATIFIED., scientific american, 1895-08-17

RECENTLY PATENTED INVENTIONS. Engineering. Railway Appliances. NEW BOOKS AND PUBLICATIONS. Designs. Miscellaneous., scientific american, 1896-11-11

The Typhoid Epidemic at Plymouth Pa. How Thought Presents Itself among the Phenomena of Nature. Sir Astley Cooper a Horse Dealer. Mechanical and Steam Engineering. The Hebrew Technical Institute. Electric lights for Cars., scientific american,

NOTES ON MILITARY AND NAVAL AFFAIRS. THE SITUATION. RETIREMENT OF C2RA L sooTr. application to the President of the Halted States Brevet and hereby is placed upon the list of retired Moors of DISHONESTY OF ARMY CONTRACTORS. a report which while it

Celestial Sights in June. The National Electrical Exposition. Ruling Diffraction Gratings., scientific american, 1896-05-30

Assignments of Patents. The Examination of Inventions. Preliminary Examinations at the Patent Office. How to Blake an Application for a Patent. Foreign Patents. Rejected Applications. Back Numbers and Volumes of the Scientific American RATES OF

The London Underground Railway. What is Charcoal I American Shoes in Paris. THH LONDON' TUNNELKING'S CROSS STATION. Skeleton Leaves. --qt Copper Direct from the Ore. LONDON TUNNELBAKER STREET STATION, scientific american, 1867-02-23

The Great Canal Reward. THE: CHIBA NORA BRIDGE—MONT CENIS RAILWAY. MINING IN COLORADO. THE COMBA SCITRA BRIDGE-MONT CENIS RAILWAY., scientific american, 72-03-09

METAL SPINNING. Al'Raising of an Old War Ship., scientific american, 1869-12-11

50 A Sensible Christmas Present. AT MOLDING AND SHAPING MACHINERY., scientific american, 1876-01-22

SINN, scientific american, 1862-06-07

STEVENS INSTITUTE OF TECHNOLOGY. Mental Improvement after Trephining. Honors for Mr. Edison., scientific american, 1892-06-18

HARMON S. PALMER HOLLOW CONCRETE BUILDING BLOCK CO. WASHINCTON D. C. can be colored or ornamented Exclusive territory for mann. facturinir with these machines action. & EXPERIMENTAL WORK. E. V. BAILLARD Fox Bldg. Franklin Square New York THE E. A.

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