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A Practical Engineer's Experience with Boilers. Public Steam Supply. How to Concentrate Colorado Gold and Silver Ores. Sudden Rise of Pressure in a Steam Boiler. Bust 'Rings for Watches. Condition of Chicago. Charcoal. Inhaler and Vaporizer for

CHAS. A. SCHIEREN & CO. TO big Tool Manufacturers for Fifty Years WALWORTH MFG. CO' Fitters. Every Tool for Steam Gas and Water Tool has our Price 1.00New Type 2-Cycle Motor best should address Manufacturers in search of the Wagon standard W. J.

Rapid Progress in Electric Science. The First Telegraphic Instrument. A New Carbon Battery. Isaac Newton., scientific american, 1884-10-04

LEARN TO BE A WATCHMAKER Formerly Parsans Horological Inst. Bradley Polytechnic Institute Largest and Best Watch School Horolorica I Department Peer la fiRcrois I America CHARTER State Power Needs. CHARTER GAS ENGINE CO. Box 148 STERLING ILL.

POLYTECHNIC ASSOCIATION FARMERS' CLUB. THE BEST STRAWBERRY. MISCELLANEOUS SUMMARY., scientific american, 1865-06-24

ELECTRIC LIGHTING ON THE ARIZONA. ELECTRIC LIGHT MACHINERY OF STEAMER ARIZONA. ' Spontaneous Combustion. Novel Railway Propulsion. Imitation Walnut., scientific american, 1883-06-09

APRIL 10 1909. AN IMPROVED HOSE COUPLING. IMPROVED HOSE COUPLING. FRYING DEVICE. Scientific American AN IMPROVED RAT TRAP. IMPROVED RAT TRAP. A NEW RAILROAD SPIKE. Helium in Hocks. RAILROAD SPIKE., -1909-04-10

TURBINE WATER WHEELS. JAMES LEFFEL & CO. OFFICE&WO KS Illvo24 BRIDGE ST BROOKLYN .Y. Starrett's Universal Surface Gauge TYPEWRITERS. ARTESIAN WELLS BUY TELEPHONES SINTZ GAS ENGINE CO. GRAND RAPIDS MICH. 0 Pages and 0 Superb Cuts added. MUNN & CO.

NEW BOOKS AND PUBLICATIONS. Improved Wooden Frame for Hinged Awnings. Improved Farriers' Tool. Improved Toy Whistle. Improved Composition for Presex wing Eggs. Improved Feed Water Regulator. Improved Life-Preserving Stool. Machine for Grinding and

scientific american, 1905-05-20

THE STEAM TURBINE IN LARGE MERCHANT STEAMERS.NATIONAL ACADEMY OF SCIENCES PROVIDENCE MEETING., scientific american, 1900-11-24

SOME DISTINGUISHED INVENTORS OF THE LAST HALF CENTURY., scientific american, 1896-07-25

FORBES PATENT DIE STOCK Apple Economical Gas Engine Igniters Electrical Munik. THE MIDGET DYNAMO OR MOTOR. ELBR1DGE ELECTRICAL MANUFACTURING COMPANY Elbridge N. Y. U. S. A. RESTFUL SLEEP 'Perfection' Air Mattresses CUSHIONS and PILLOWS. Clean and

wheeled vehicle will go is a good day to go out in a Cadillac. Detroit Mich. 326 Illustrations Price $1.50 370 Pages WOOD or METAL TV Workers 695Watsr 51ameta Fills N.V.' ' sgra TARING BELTING AS A BASIS Schieren Belting CHAS. A. SCHIEREN dr CO. ity.

$20 On application for Re-issue $30 On application for extension of Patent $10 On granting the Extension.$50 On filing application for Design (three and a half years). .$10 On filing application for Design (seven years), scientific american,

A NOVEL SPEED INDICATOR FOR AUTOMOBILES. A NOVEL AUTOMOBILE SPEED INDICATOR., scientific american, 1904-11-05

ANOTHER ELECTRIC RAILWAY FOR LONDON. MALARIAL INFECTION ON THE EAST COAST OF AFRICA. THE ' DEUTSCHLAND ' BREAKS TWO RECORDS. THE GREAT ARARAT ASCENDED. THE DUKE OF ABRUZZI'S EXPEDITION REACHES THE HIGHEST ALTITUDE. SCIENCE NOTES., scientific

Mechanical. Agricultural. THRASHING MACHINE ATTACHMENT device especially adapted for feeding banded grain and may be attached to a machine of any size or capacity. and a feed device consisting of a grating pivoted at one below the opposite end of the

scientific american, 1870-04-16

PARICHIIRST'S MACHINE GUN. MAP AND PROFILE OF HOWE'S CAVE NEW YORK, scientific american, 1881-01-15

The Imperial Valley the Colorado River and the Inundated time to foretell. T h e Argentine RIPE WANE 403. Thousands ot 'ions of Clay Were Unloaded from Cars Upon the Upstream Side Broken Rock by the Use of Hydraulic Jets. Dried Out and Cracked by the

Improved Gate. Newton's Process for Duplicating Negatives. HOSKINS' IMPROVED GATE. Sensitive Tests for Hyposulphite of Soda., scientific american, 1871-01-01

COPYRIGHTING FRUIT. Sounding Niagara River. 4 4THE SOClia SCIENCE ASSOCIATION. RECENT INVESTIGATION INTO THE ACTION OF ANESTHETICS. Glass Shoe Patterns. Ifr 40 4144 A Notable Feature in the Iron Trade., scientific american, 1879-09-27

THE NEW AUSTRALIAN PATENT ACT. Scientific American VOTING MACHINE. DIAGRAM SHOWING TWO POSITIONS OF WINDMILL 47 A COMPENSATING WINDMILL. JULY T6 1904. A NOVEL TYPE OF VOTING MACHINE. A COMPENSATING WINDMILL., 1904-07-16

Agricultural Science. Solid Gas. Lubricating Oil. LITERARY NOTICES. Mechanics and Manufacturers full value. tain a paper is to remit to the publishers. On Bollers.No. 22. 8 . 28, scientific american, 1852-05-08

AT. GLASS OIL CUPy ARE THE BEST.G. B. DAVIDS' PATENT MACHINERY OF EVERY D SCRIPTION GEORGE PLACE Cotton Seed Huller. Steel Castings UNITED STATES PATENT ASSOCIATION. Durable. and Efficient. B. C. MACHINERY CO. Battle Creek Mich. Pond's Tools. V

scientific american, 1902-10-11

STEAM ENGINES. Modern Steam Engines. BY THE SAME AUTHOR. The Slide Valve Practically Explained. 510 Walnut St Philadelphia. PR. U. S. A. Edited by W. J. 'Youmans. Biographical Sketch. Single Number 50c. Yearly Subscription 55. D. APPLEVON & COMPANY 1

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. XXXIVNo. 7.1 Treatment of Horses in Winter. Remarkable Locomotive Accident. THE GREAT TELESCOPE AT PARIS FRANCE; Decreasing Flow of Rivers., scientific

ELECTRIC LAUNCH MOTOR. - THE Beeswax Joints MOTOR' $37.50 THE aHOF(E„ c214ost comfortable fast service route in America Experimental Electrical Outfits WE GVARANTEE 8 ) i I ! ; ' s ) s -'7 . .s.rosviou-7lr OFTIS BROS &CO.Ra Diamond EVERY WANTS A

Passed Assistant Engineer W. C. Herbert U.S.N., scientific american, 1898-07-16

scientific american, 1882-07-29

Crystallized Javelle Water and Chlorozone. Pig. 0BODIN'S SACK-HOLDING THUM Pig. 7NORMANWO SACK-HOLDING TRUCK. Chemistry in Schools and Colleges. Pig: 8GlIDERVB SAM HOLDER. Salicylic Acid with Boracic Acid. Methyl Aldehyd., scientific american,

AUGUST 31 1895. THE NINTH INTERNATIONAL YACHT RACE., scientific american, 1895-08-31

scientific american, 1859-12-03

scientific american, 1885-10-11

Improved Fusible Plug for Steam Boilers.Improved Mangle. MUNN & CO. Publishers FHOM THE STEAM PEWS OF JOHN A GRAY & ORENN SM ITH'S FUSIBLE PLUG FOR STEAM BOIL IMPROVED MANGLE., scientific american, 1866-09-01

Self-Acting Mule and Looms., scientific american, 1868-09-16

offer some resistance t the motion but by means by the smaller counter weights K K. 'the motion way of the Michigan Con and Michigan Southr n railroads. The cfty of OIRAUDAT'S WINDMILL AND MOTIVE POWER. \ one sail is turned down position not merely

NEW BOOKS AND PUBLICATIONS. TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted June 28 1887 AND EACH BEARING THAT DATE., scientific american, 1887-07-16

AUGUST 20 1892. Pertinacious John Nash. THE STEEL STEAMER CHOCTAW. AN IMPROVED FIRE ENGINE PUMP. Costa Rica. THE STEEL STEAMER CHOCTAW., scientific american, 1892-08-20

The 'Climax' Stereotyper THE J. F. W. DORMAN CO. 648018 si BUY THE M. & B. TELEPHONE. SECURITY CASH RECORDER. RECORD KEEPER-INVALUABLE TO ALL KINDS Tea HOUGH CASH RECORDER CO. PATENT SECTIONAL ALL IRON TOWERS of 4 and 12 Columns PLAIN ALL WOOD TOWERS

The Hyacinth Pest in Florida. RECENTLY PATENTED INVENTIONS. Agricultural Implements. Electrical Apparatus. Railway-Appliances. Miscellaneous Inventions., scientific american, 1899-07-11

The Examination of Inventions. Preliminary Examinations at the Patent (Mice. How to Make an Application for a Patent. Rejected Applications. Foreign Patents. Assignments of Patents. THE PRINTING OF PATENTS ABANDONED., scientific american,

FIRE BOXES AND COMBUSTION CHAMBERS. THE STRONG LOCOMOTIVE. CORRUGATED BOILER. LOCOMOTIVE WITH DOUBLE CAB MANUFACTURED BY STRONG LOCOMOTIVE COMPANY, scientific american, 1889-01-12

TROY N.Y. Civil Mining and Hydraulic Engineers Physical Laboratories Schools and Catalogues and full information furnished on request Manufacturers' Exchange Building SEATTLE WASHINGTON Let Us He p You TWe Give Youyou Tools And Equipment FACTORY LIKE

NO. 37 PARK ROW NEW YORK. EXHAUST STEAM FOR HEATING PURPOSES. PRISON REFORM. A POSSIBLE IMPROVEMENT IN HOUSE HEATING., scientific american, 1874-11-28

0, scientific american, 1900-12-29

WHAT IS ENERGY Preservation of Freestone., scientific american, 1870-07-09

APPARATUS FOR COMPOUNDING RECTANGULAR VIBRATIONS. BY GEO. M. HOPKINS. Prison Labor Contracts. trade.' d College Observatory. A Railway Tunnel between the United States and Canada.4 410 Copyright in Judicial Opinions. conedenee cheerfulness and

POP SAFETY VALVEWATER RELIEF VALVE STEAM ENGINE INDICATOR STEEL TYPE for TYPEWRITERS Stencils Steel Stamps Rubber and Metal Type Wheels. STANDARD TYPEWRITER. Gold Medal-Paris Exposition 1889. REMINGTON NICKEL PLATING ZUCKER 8cLEVETT NOW READY. NICKEL

2d The combination of the parts A and C by a hinge joint substantially as and tor the purpose described described of the rubber or other yielding washer springs I f' as and tor the purpose described. 4th The combination with the parts A and B and the

Scientific American. he 0 nly Perfect Lye:glass for Read ill power. IN THE INTERESTS OF HEALTH BERKEFELD FILTER AN ABSOLUTELY POSITIVE ELEVATOR SAFETY AUTOMATIC SIMPLE Agents Wanted A TRUSGOTT BOAT Simple. Safe Reliable Speedy. Truscott float Mfg.

HANGING WALL PAPER. OD. EDWIN MARCUS CHAFFEE. PROFESSOR JOHN W. FRAZER. WILLIAM PRESCOTT SMITH. SCIENTIFIC AND PRACTICAL INFORMATION., scientific american, 1872-11-02

of russet apples two pounds of gooseberries and four pounds of pears and that 4 pow& of grapes 127 pounds of russet apples 192 pounds of pears and 327 pounds of plums are equal in nourishment to 100 pounds of potatoes., scientific american,

THE GARDNER GOVERNOR. IMPROVED WASHING MACHINE. THE GARDNER GOVERNOR. New Ozone Generator. 4. THE TIINNICLIFFE FIRE ALARM. Nose Hags for Horses., scientific american, 1873-07-26

NO. 87 PARK ROW NEW YORK. 0. D. MUNN. A. E. BEACH. TERMS. One copy one year postage included 93 20 One copy six months postage included 1 60 Club Rates: Ten copies one year each $2 70 postage included 927 00 Over ten copies same rate each postage

THE ADVOCATE OF INDUSTRY AND JOURNAL OF SCIENTIFIC MECHANICAL AND OTHER IMPROVEMENTS. BARKER'S TORTUOUS PADDLE WHEEL. SCIENTIFIC AMERICAN: By Munn & Company. TERMS-82 a year--$1 In advance and the remainder In 6 months. THE POOR VOTER A CHRISTIAN

XPROVED NDMILL. The main tower consists of an open framework with in which the floats of all wheels except the upper one revolve. In the center of the frame is a hollow shaft to which the arms carrying the floats are rigidly se cured ; each float is

Photographs of Metallic Objects. A New and Startling Invention. Power for the New Orleans Exhibition. Flight of an Exploded Boiler., scientific american, 1884-08-16

The Behring Sea Tunnel. Stellar Universe in Miniature. How One Tree Can Grow Within Another. Earthquakes and Dam Construction at Panama., scientific american, 1906-05-05

NO. 87 PARK ROW NEW YORK. 0. D. MUNN. A. E. BEACH. TERMS FOR THE SCIENTIFIC AMERICAN. Scientific American Supplement. TERMS. THE SCIENTIFIC AMERICAN SUPPLEMENT. TABLE OF CONTENTS. The Scientific American Supplement 188 can be supplied ; subscriptions

THE AMERICAN DIAMOND DRILL CO No. 61 Liberty St. New York PUMPS Works foot of East 23d Street New York City. JOHN A. ROEBLING'S SONS SCHLENKER'S PATENT D. HOWARD IRON WORKS BUFFALO.N Y. Swain Turbine. THE SWAIN TURBINE CO. North Chelmsford Mass. Its

scientific american, 1865-09-11

ESTABLISHED 1845 No. 361 BROADWAY - NEW YORK. RESOURCES AND IMPROVEMENTS IN CHINA., scientific american, 1900-08-04

Improved Locomotive Link Motion. Cobalt and Nickel. Literary Notice. GHEMISTR Y THEORETICAL PRACTICAL AND ANA DINSMOR E'S AMERICAN RAILWAY GUIDE—Published Inventors and Manufacturers SCIENTIFIC AMERICAN. CLUB RATES. IMPROVED LINK MOTION FOR

SHORE ANCHOR. ORE CONCENTRATOR. ORE CONCENTRATOR. AN IMPROVED PIPE WRENCH. Waterproof Mitts. Lamp Globes for Darning. ATTACHMENT FOR LETTER BOXES. A SIMPLE PACKAGE TIE. A SIMPLE PACKAGE TIE. Patent n 'Departmentl SHORE ANCHOR. - AN IMPROVED PIPE

scientific american, 1904-01-30

scientific american, 1906-04-21

SAILORS' HOME BOMBAY INDIA. 4.6sMechanical Pigeons. Telegraphic Items. SAILORS' HOME BOMBAY INDIA., scientific american, 1872-10-05

321 A Powerful Loconiotive. Action of the Air on vegetabse ratty Oils. Pittsburgh Machine llhops., scientific american, 1865-05-20

A PNEUMATIC RAILWAY-SAND-BOX. AN AUTOMATIC TELLURION. An Electrically Operated Stage. AN IMPROVEMENT IN CUTTER-STOCKS. TERRELL'S IMPROVEMENT IN CUTTER-STOCKS. Nitrate of Silver Stains. DIAGRAMMATIC AND PERSPECTIVE VIEWS OF A NEW TELLURION.,

NEW POLISHING MACHINE. IMPROVED BOMB LANCE. PIERCE'S BOMB LANCE. CHASE'S POLISHING MACHINE. NEW CISTERN FILTER. A Steel Steamboat for Venezuela. HAND MIRROR HOLDER. HAND MIRROR HOLDER AGRICULTURAL INVENTIONS. The Rarity of Food Adulterations.,

WELDING—NATURE AND MEANS OF THE PROCESS. HORACE GREELEY'S RECOLLECTIONS OF A BUSY LIFE. NO. 37 PARK ROW (PARK BUILDING) NEW YORK. Contents: A CAUTION. CHANGES IN THE ELEVATION OF LANDSUBSIDENCE OF COASTS., scientific american, 1868-10-21

Improved Process for Steel Castings. Ball Bearings for Wagons. The Columbia's Official Trial. French Prosperity. (Sorresporibence. The Destruction of Incandescent Lamps by Static Discharge. Tuberculosis in Relation to Animal Industry and Public

of sulphuric acid of the strength of oil of vitriol. Many of the manufactories of sulphuric acid hay begun to use the copper ore as a source of sulphur and thereafter hand over the roasted ore to the copper LOCKWOOD'S COMBINATION BRIDGE. construction

INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the Week Ending September 12 1905 AND EACH BEARING THAT DATE, scientific american, 1905-09-23

INCRUSTATION OF STEAM BOILERS. NEW ENTERPRISE—STEAM WAGON FOR THE WESTERN PRAIRIES. Cultivating Plants when the Dew is On. Photographic Engraving. again brooding over the whole earth. Gen. Beauregard and the Scientific American. Another Steamer for

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. XXSY--AT .15. [NEW SEEMS. A BOOKBINDER'S SEWING MACHINE. New Pavement. THE SINGER BOOK-SEWING MACHINE., scientific american, 1876-10-07

TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted April 7 1891 AND EACH BEARING THAT DATE., scientific american, 1891-04-18

THE WAR STEAMER FULTON THE FIRST. THE WAR STEAMER FULTON THE FIRST. The Panama Canal and Leseeps. ' DEMOLOGOS, scientific american, 1893-04-15

NICKEL Electro-Plating UNION MADE. $3.50 SHOES MEN. CliARTER 2otue1ilifire2ope MOST POWERFULL WIRE ROPE MADE BRODERICK&BASCOM ROPE CO. ST.LOUISMO. Mosquitoes THE CULECIDE CO. 165 Summer St - Boston Mass. RY 'ilk Q'ON 4 BACKUS GAS & GASOLINE ENGINE,

Centrifugal Strain in Revolving Cylinders. Cost of Live Beef and Dressed Beef. Standards for Freight Car Building. Tests of Coals. Common Sense in Summer. How to Remove a Tight Ring. Cleanliness of Sinks., scientific american, 1883-08-04

8 CENTS A COPY. Vol. L XXXIV.-No. 19.], scientific american, 1901-05-11

COMPOUND CYLINDER ENGINES. At No.37 Park Row (Park Building). New York THE TAX ON MANUFACTURERS. COTTON GINS AND GINNING., scientific american, 1863-06-20

MOSELY FOLDING BATH TUB CO. WOODEN TANKS. W. E. CALDWELL CO. ING MODELS VOLNEY W. MASON & CO. Friction Pulleys Clutches & Elevators PROVIDENCE R. I. STRONG CASTINGS. cluoDELIvERy LEHIGH PREPARATORY SCHOOL Bliss School of Electricity Ohio. Ur

The Treatment of Pneumonia. Papaine. EXPERIMENTS IN SOUND. GRAPHIC SOUND WAVES. VIBRATIONS OF SOUNDING VESSEL., scientific american, 1886-08-21

flute for Inventors on Steam Condensers. 410. Circles. The Grammatical Problem. . The Roman Numerals. .-40 THE GOLDEN HEGIRA. Life-Saving Inventions. Coal Oil as a Lubricator., scientific american, 1867-05-04

378 DECISIONS OF THE COURTS. New York. Improved Car Coupling. Improved Spike Bar. Improved Land Roller. Improved Eaves Trough Hanger. Improved Machine for Cutting Cloth. Improved Belt Hole Cover. Improved Toy Horn. Improved Balance. Improve Slide for

151 MANUFACTURE OF MORTAR BRIMS. Improvements in Sugar Making. tracks and dotted here and there with shanties. The New Lake or Sea in Africa. Artificial Furs. ways. HYDRAULIC PRESS FOR MAKING MORTAR BR, scientific american, 1874-09-05

ESTABLISHED 1846. The Most Popular Scientific Paper in the World 52 Numbers a Year. 0 H E 0 uiltling (Edition. MUNN &- CO. Publishers 361 Broadway New York. PRINTING INKS Boiler Coverings Millboard Roofing. Building Felt Liquid Paints Etc. ON GAS

Genesis of a Car Wheel. An Engineer's Observations. Invest Wisely. The Modern Foot., scientific american, 1885-12-19

NOTES ON MILITARY AND NAVAL AFFAIRS., scientific american, 1862-04-19

NEW BOOKS ETC., scientific american, 1908-05-30

Recent Meteors. A Meteor in Nevada., scientific american, 1874-02-07

THE ADVANCE IN THE PRICE OF IRON. STEAM ON THE ERIE CANAL. BEET SUGAR IN THE UNITED STATES. Don't Use Galvanized Iron Pipes., scientific american, 1872-04-20

[SEPTEMBER 21 1872. Value of Extended Patents. MUNN & CO. 37 Park HowN. Y. Inventions Patented in England by Americans. MUNN & Patent Solicitors 37 Park Row. Hew York. Horizontal and Upright Boring Machines. PATENT BAND 'LAVE RACK COLLEGE it Ilnd'n

scientific american, 1866-02-17

MARCH 24 1894. TRICK PHOTOGRAPHY. HEAD OF LADY PHOTOGRAPHED ON A PLATTER. PAN CUT AWAY TO REPRESENT PLATTER. HOW THE PHOTOGRAPH IS MADE. A Sewer on Piles. BICYCLE BOAT. Influence of Horticulture on the Manners and Customs of the People. Aluminum

MAY 25 18781 NEW BOOKS AND PUBLICATIONS. COMMUNICATIONS RECEIVED., scientific american, 1878-05-25

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