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SCIENTIFIC AMERICAN. 415 To our Patrons and the Public. Where is the Fault . Portable Gas Light. Steam on the Schiyimin Canal. Smith's Improved Electric Machines. Likeness of Gen. TaylorPatent Agency. Vol. I Scientific American. AD FOR THE SCIENTIFIC

A Crossover West of Greenwich Avenue Station Showing the Separate Twin A Train of the New Steel Cars for the Hudson Companies' Tunnels. Large Sectional View Showing the Course of the Tunnel Under the Hudson River. OPENING OF THE HUDSON RIVER TUNNEL

STANDARD PASSENGER LOCOMOTIVE. Three Colors in One Bottle. STANDARD PASSENGER LOCOMOTIVE OF THE NEW YORK NEW HAVEN AND HARTFORD R.R. The Mount Washington Hallway. -44 Artistic Photography., scientific american, 1885-05-16

Week Ending September 10 1892. Winchester College An exhaustive article 13913 RECENT ARMOR PLATE TRIALS. OPPORTUNITIES FOR INVENTION., scientific american, 92-09-10

scientific american, 1863-06-13

AA Monster Gun., scientific american, 1886-11-20

scientific american, 1868-0

APRIL 15 I893.1 Replies to Enquiries. TO INVENTORS INDEX OF INVENTIONS For which Letters Patent of the United States were Granted AND EACH BEARING THAT DATE., scientific american, 1893-04-15

American Silk Manufacturing Silk Throwing and Weaving and Locomotive Building at Paterson N. J. Concentration of Tannin., scientific american, 1872-05-11

scientific american, 1904-02-27

scientific american, 1865-07-08

The Composition of Water. The Cultivation of Madder and other Dyes. The Discovvy of Jupiter's Satelites. The Crystal Palace. Compensating Pendulums. The London Artizan., scientific american, 1852-05-29

Gas Generated in Ammoniacal Ice Machines. A New Filtering Medium. A New Treatment and Possible Cure for Cancer. Rest and Exercise in Heart Disease. Somnal. Safety Appliances in Railroads., scientific american, 1890-01-04

scientific american, 1869-03-11

THE ROTARY NEOSTYLE. Malaria Suppressed by the Use of Lime. Fig. 1THE ROTARY NEOSTYLE., scientific american, 1898-12-03

Ball Valves BAKER'S The Celebrated Patent Air Space NG PATENT RED STRIP RUBBER BELTI. Car Springs Wagon Springs Wringer Rolls Crain Drill Tubes ber Matting., scientific american, 83-03-17

LETTER WRITING FIVE THOUSAND YEARS AGO. LETTER WRITING FIVE THOUSAND YEARS AGO. essinall, scientific american, 1906-04-11

180 [MARCH 16 1867.Scientific American ENLARGED FOR 1867. MUNN & CO. Publishers, 67-03-16

NEW BELT CLASP. I TELEGRAPH HAND CAR. AP I0 Physiological Action of Salts of Gold and Other Metals. NOVEL BELT CLASP. Tattoo Marks Made Useful. RECENT INVENTIONS. SHEFFIELD'S TELEGRAPH AND LIGHT SECTION HAND CAR., scientific american, 1881-06-04

Welding by Pressure. A MODIFIED DANIELL CELL. High Lighting by Electricity. A New Process of Refining Petroleum. 1 1 - Eruption of Fuego. AS 4 A Queer Locomotive. After Graduation., scientific american, 1880-09-18

AN IMPROVED WRENCH. AN IMPROVED MANGLE. Or Tanning by Electricity. The Localization of the Perfumes of Flowers. Photography on Marble. A SIMPLE FORM OF SAFETY POCKET. DIEFENBACH'S SAFETY POCKET. WELLS' WRENCH'. THE HAGEN MANGLE., scientific

INDIAN CURIOSITIES., scientific american, 1859-12-03

scientific american, 1867-06-29

SITTRO BATHS OF SAN FRANCISCO. EXTERIOR OF THE SITTRO BATHS SAN FRANCISC Ail MIAMPHITHEATER AND PROMENADE SIITRO BATHS. Business at Guam., scientific american, 1899-04-29

748394 ewing machine feeding mechanism W. A ewing sweat bands into hats machine for W. P. Gammons Ir.747963 hade and curtain holder. F. E. Neumann7482 bade and curtain holder window G 1904 SCIENTIFIC AMERICAN INC, 1904-01-09

Nature and ArtmKing.Crab War Ships. An Effectual Corset Wanted. Strength of Steam Boilers. The Great West. The French Railway System., scientific american, 1864-01-30

The Snows of Mars. Birds and Their Persecutors. Injury to the Orange Crop., scientific american, 1895-01-19

Simple Syrups. MECHANICAL MOVEMENTS. Circular and Traverse Motion. Curious Mode of Making Butter. Hemlock Hedges. Corn Beer. Practical Receipts. To Polish Pine Furniture. To Clean 0 Paint. A Beautiful Art. Cheap Paint. Improved Method of Making

Fl G.Young.Gen. ROOFING. $5 to $20 DO YOUR OWN PRINTINU WATCHMAKERS. MACHINERY MARTI'S RUBBER 'WHEELS. RUPTURE PIUM MACHINERY DEPOT IN AME RICA. H.B.SMITH MACHINE CO. SPEAKING TELEPHONES. THE AMERICAN BELL TELEPHONE COMPANY Your for . MOSS ENGRAVING

AUGUST 17 1867. COOK'S PATENT DESTRUCTIVE EXPLOSION. TMPORTANT., scientific american, 1867-08-17

scientific american, 1905-07-22

VAPOR INCISE AND POWER COMPANY GREENFIELD Steam Engine Works. Established 1874. Manufacturers of Greenfield Sta tionary Portable and Yacht ENGINES AND BOILERS. W. G.k G. GREENFIELD East Newark N. J. MONITOR INDEX OF INVENTIONS For which Letters

[ $3.00 A YEAR. WoolaT. Vol. LXXXIINo. 22.1 Power Weaving. Dye House. Card-Grinding Practice. At the Ring-Spinning Frames. Dyeing Laboratory. Practice on the Fly Frames., scientific american, 1900-06-02

Issued by the United States Patent Mee., scientific american, 1869-11-27

APPARATUS FOR ENLARGING MICROSCOPIC SLIDES. Electricity : its Relation to Vital Power. Grecian Stone Cutting. APPARATUS FOR ILLUMINATING AND ENLARGING MICROSCOPIC SLIDES., scientific american, 1884-05-03

THE MANUFACTURE OF EDISON PHONOGRAPH RECORDS. Automobile News. ficienee Notes., scientific american, 1900-12-22

THE HARPY EAGLE.Boiler Explosions. Capital and Labor. Postage Stamp Frauds. Planing Mill Machinery. THE HARPY EAGLE., scientific american, 1877-03-03

scientific american, 1903-11-11

and investigations to the truly useful arts It the intelligent artisan Eneish Patent Laws. House of Lords and no change will take place in the law of patents. The bill was left to late in the year—this was the cause of the lengthy evidence taken by

THE SCIENTIFIC AMERICAN. 305, 1859-11-05

The Lebaudy Airship Record. Gordon McKay's Harvard Endowment., scientific american, 1903-11-21

THE OIL REGIONS OF PENNSYLVANIA., scientific american, 1865-04-22

COMING TRIAL TRIP. MY THE LONDON CORRESPONDENT OF THE SCIENTIFIC AMERICAN. Dr. Barton on the Deck. Part of the Airship Frame Showing a Propeller and the Method of Bracing. In Alexandra Palace., 1904-01-16

THE BAKER SUBMARINE BOAT. Irrigation in Washington. Cause of the Unequal Wearing Away ot Electric Light Carbons. THE TUCK SUBMARINE TORPEDO BOAT OF 1886. THE BAK SUBMARINE BOAT—AS IT APPEARS UNDER WATER., scientific american, 1892-07-30

Ballooning at Night. What is the Electric Forcef, scientific american, 1875-09-25

DECISIONS RELATING TO PATENTS TRADE MARKS ETC. By the Commissioner of Patents. U. S. Circuit Court—District of Massachusetts. The Great Steamship City of Rome. The Dying Fish of Lake Ontario., scientific american, 80-0

SOCIA.TION., scientific american, 1869-10-02

An Invention Called For. Swift's Comet of 1879. POLE STAR ALFRED M. MAYER., scientific american, 1879-08-23

Blue Obtained by the Reduction of Chlo. roxynaphthalic Acid. Sulphureted Hydrogen. Thallium Glass. Coal Oils and Petroleum., scientific american, 1866-05-19

To Sawyers. Way to Granulate Zinc. The Maximum Strength of Iron. To Make Smooth Iron Castings. Drawing Dust from Shops. To Dissolve Shellac. Length of Geological Periods., scientific american, 1866-03-31

scientific american, 1864-03-11

137 East Lake Street. - Chicago AERIAL THE ABOVE SHOWS SPAN ON AMERICAN NETTIE TRAM OURAY COLO. BUILT BY LESCHEN C THE Taught in a Full Course by Mail by PROF. ALBERT VERNON Founder and Headmaster of THE VERNON ACADEMY OF MENTAL SCIENCES. Warner

plats. MACHINE FOE CLEANING BRASS TURNINGS AND FILING-SJulius JOMMEL, scientific american, 67-09-14

Improved Corrugated Iron Boner. EXPERIMENTS OF DRIVING AND OF DRAWING AIR THROUGH TUBES. THE WORLD'S INDEBTEDNESS TO SCIENCE. MONTGOMERY'S CORRUGATED IRON BOILER, scientific american, 1864-03-05

Classified Advertisements necessary to give the number of the inquiry. ITNN & CO. BUSINESS OPPORTUNITIES. PATENTS FOR SALE. PARTNERS WANTED. AGENTS WANTED. LISTS OF MANUFACTURERS. MISCELLANEOUS. AGRICULTURE.-The New Agriculture. AMUSEMENTS.-The

MareonPs Latest Feat. The English Cruiser 'Spartiate.” Melting Snow by Steam., scientific american, 02-03-15

NO. 87 PARK ROW NEW YORK. Pt. Ma . NEW YORK SATURDAY OCTOBER 4 1873. SPECIFIC HEAT. CAMPHOR. CRUDE PETROLEUM FOR FUEL AND FOR ILLUMINATING GAS., scientific american, 1873-10-04

Courses in Chemistry and Physics. ROSE POLYTECHNIC INSTITUTE A College of Engineering. Mechanical Electrical Civil Engineering' Chemical Courses; Architecture. Exten sive shops Siodernly equipped laboratories m all de partments. Expenses low. 20th

Index of Inventions Letters Patent of the United States May 6 1873, scientific american, 1873-06-07

NO. 37 PARK ROW (PARK BUILDING) NEW YORK. Contents: WASTE OF OIL IN SHOPS AND MANUFACTORIES. sop SPONTANEOUS COMBUSTION. TUNGSTEN AND TUNGSTEN STEEL., scientific american, 1868-02-08

ASPECTS OF THE PLANETS FOR NNE. Measurement of Milk. A Feat of Telegraphy. The Magnetic Polarity of Iron. Remedy for Phthisis., scientific american, 1884-05-31

.„„. DECEMBER 1 1900. 4010 A Hallway in Ashantee. Peculiarities of Siamese Music. Zorresponaence. Kerosene lired Automobile. A Popular Error. Iron Sailing Ships. Automobile News. Infectious Diseases in London., scientific american, 1900-12-01

IMPROVED CONCRETE MIXER. MESSENT'S IMPROVED CONCRETE MIXER., scientific american, 1877-08-18

THE SCIENTIFIC AMERICAN. 23, 1860-07-07

RUBBER BACK SQUARE PACKING. AriatittltiOt BEST IN THE WORLD. been removed as above. Applied to all machinery driven by fly-wheels and liable to be broken by power stored in wheels such as mi ender rolls upsetting machines : chines. We warrant to save

The Ejector fluffier The Greatest in the Gasoline Age The Nickel Plate Road between New York and Boston and Cleveland Fort Wayne and Chicago. A MONEY MAKER How To Increase baud784740 LUFKIN TAPES AND RULES We have never been asked to take an engine

Our Washington Correspondence. A Practical Method of Determining the Friction of Slide Valves. The Origin of Petroleum., scientific american, 1877-06-02

Is there a Snow Cap on Venus ? BOONE'S METHOD OP TRANSMITTING POWER FROM A CENTRAL STATION., scientific american, 1884-09-20

TER Co. Newark. N. J. SEND FOR Vulcanizing Press for Rubber Specialties NEW YORK BELTING & PACKING COMPANY Ltd. 91 & 93 Chambers Street New York THERE ARE TWO REASONS Bausch & Lomb MICROSCOPES 'HOW TO REMEMBER' DICKSON MEMORY SCHOOL. 700 Auditorium

FEBRUARY 22 I896.i ROENTGEN'S DISCOVERY. THE COMPARATIVE ECONOMY OF THE ELECTRIC AND THE CABLE CAR SYSTEMS. 'frees Fired by Electric Wires. A New Tunneling Machine. The New Photograph. WILHELM CONRAD ROENTGEN., scientific american, 1896-02-22

ELECTRICAL ENGINEERING If Your Eye Could See Berkefeld Filter Berkefeld Filter Co. 2 Cedar St. New York. Telephones AM FABER 1 CENT FOR 10 HOURS. THE MACIC LICHT CO. $250.00 A MONTH AND EXPENSES MADE. Magic Lamp MAKES ITS OWN GAS. ARTESIAN

RECENT AMERICAN PATENT. One Horse Mowers Wanted., scientific american, 1865-01-28

SOME SODA WATER FOUNTAIN STATISTICS. 404 4 004 IMPROVEMENTS IN OUR TOBACCO. SCIENCE NOTES., scientific american, 1899-08-12

Inventions Patented in England by Americana., scientific american, 1870-04-11

SIMPLE BLUE-PRINTING FRAME. SIMPLE BLUE-PRINTING FRAME. THERMOSTATIC REGULATOR FOR SMOKE PIPES. REGULATOR FOB FOR SMOKE PIPES. Scientific American CIRCULATING PIPE FOR HOT-WATER FAUCETS. BY d. A. BERGSTROM. CIRCULATING PIPE FOR HOT-WATER FAUCETS. BY

$25; heavy lathe $15; mall lathe $5 50 ; large drill $8; medium drill $4.50 ; large planer $7.37.1 ; medium aize planer $5.331-; forge (with amith and helper) $10; small forge (with smith and helper) $5. Machiniate received from $1.95 to $2.15 and

100-Horse power. Centrifugal Pumpe 100 to 100000 Gallons per Minute Best Pumps in the World pass Mud Sand Gravel Coal Grain etc. with out injury. All Light Simple Durable and Economical. Send for Circulars. WOODBURY'S PATENT laning and Matching

immense size of the statue renders still more glaring. While PROFESSOR R. H. THURSTON'S LETTERS. PATENT OIFICE ITEMS. CAR COUPLING DANGERS. The paper that meets the eye of manufacturers throughout Brown's Coalyard Quarry & Contractors' Apparatus for

AUGUST 23 1873.1 Explosive Projectiles. Composite Lenses. The Composition of the Tails of Comets. Bisulphide of Carbon Engines., scientific american, 1873-08-23

THE ORENATION QUESTION., scientific american, 1874-05-02

AMERICAN BORAX PRODUCTION., scientific american, 1877-09-22

THE HEAVENS IN DECEMBER. THE NATIONAL ACADEMY OF SCIENCES., scientific american, 1902-11-29

Plan View of Receiver Showing Negative Received. Plan View of Transmitter Showing Traveling Carriage Carrying Picture. The Transmitting Apparatus. Photograph of Edward VII. Transmitted by The Receiver Showing Relay to Which Recording Wireless

AN INTERESTING BOILER EXPERIMENT. How to Tell Good Butter. Bonn Whip a Frightened Horse. 'reloeity of Light. An Invention Called For. The Periodical Cicada. Mica and Isbestos in the Black Hills. A Dairy Scheme. The Newfoundland Seal Catch. Hall's

The Mechanic of the Future. Incendiary Postal Cards. Cable Telegraphy. urious Effects of Brain Wounds. Bursting of a Fly Wheel. Hard Rubber Thermometers. A Soda Water Law Suit., scientific american, 1874-12-12

26 the S Nuttion. STEAM WAGONS FOR MILITARY PBRPOSES. RAILWAY ACCIDENTS. AMERICA AT THE WORLD'S FAIR IN 1861. IRON SHIPS NOT INVULNERABLE., scientific american, 1861-07-13

under the eaves of the roof. Now the questions I want carbonate If necessary then to slightly acidify with, scientific american, 1892-03-11

Petroleum as a Steam-Maker. The Missouri River. Suggestions on Wood Finishing. Lime Juice versus Alcohol. The Stinging Tree. 1.1 Caution to DraughtsmenArsenic in Water Colors., scientific american, 1879-07-11

Enquiries to be Answered. NEW BOOKS AND PUBLICATIONS. TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted February 5 1889 AND EACH BEARING THAT BAWL., scientific american, 1889-02-23

Agricultural Science. Coffins of Baked Clay of the Chaideans. Elephants' Bones. New Kind of Tobacco. LITERARY NOTICES. Mechanics and Manufacturers DAY'S IMPROVEMENT IN STREET SEWERS., scientific american, 1852-04-10

Vol. LV.--No. 15. j, scientific american, 1887-10-08

Manufacture of Menhaden Fish Guano. Anti-Fat. Saws., scientific american, 1879-11-29

A NEW TYPE OF BICYCLE. A NEW TYPE OF BICYCLE. AN IMPROVED AIR MOTOR. COOPER'S AIR MOTOR. A New Illuminant. Plans for the Zoological Gardens. A Word to Mall Subscribers. A SELF-HEATING SOLDERING IRON. BARBER'S SOLDERING IRON. The Consumption of

THE SCIENTIFIC AMERICAN, 1859-07-30

NEW WOODWORKING AND ROUSE AND CARRIAGE BUILDING INVENTIONS.NEW MISCELLANEOUS INVENTIONS., scientific american, 1877-10-13

Rubber Pump Valves NOTE THE SIMPLICITY Fells U. Daus Duplicator Co. 1 Daus Building 8 John Street New York CRUDE ASBESTOS DIRECT FROM MINES ASBESTOS FIBRE R. H. MARTIN BRISTOL'S_. Electricity in all ranges OPERATION The Improved . Stencil Cutting

NEW BOOKS ETC. INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the Week Ending June 2 1903 (Continued on page h58), scientific american, 1903-06-13

SCROLL SAWING MACHINE. -David R. Williams Sr. Paris Ky.-This in Index of Inventions for which Lettere Patent of the United States were granted Potent Solicitors. 37 Park Row New York., scientific american, 1872-09-28

Improvement in Car Trucks. PETROLEUM AS A FUEL. STEAK BOILERSTHEIR FORM CONSTRUCTION AND MATERIAL. English and American Guns.REYNOLDS & CUTLER'S CAR TRUCK., scientific american, 1867-06-01

Relation to One Another. Long-Distance Telephone Receiver With Thermo-Galvanometer Mr. A. Frederick Collins in His Laboratory Showing Part of His for Fine Adjustment. Wireless Telephone Apparatus., scientific american, 1908-09-19

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