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ROOTS' PATENT PORTABLE FORGE. Back PageS1.00 a line. Inside Page75 cents a line. THE ALLEN COVERNOR MENT. CENTENNIAL PREMIUMS. B. K. BLISS & SONS Niagara Steam Pum pWorks BROOKLYN N. Y. VIP THE HEALD SISCO VERTICAL & HORIZONTAL. ADAPTED T EVERY

A Double-Barrel Cannon. The Current Supplement. Contents. RECENTLY PATENTED INVENTIONS. Bicycle-Appliances. Household Inventions. Miscellaneous. Designs., scientific american, 1899-02-11

The Cost of British Ships of War. Rewards for Inventors. Do Horses Weep 's RECENTLY PATENTED INVENTIONS. Agricultural. Electrical. Miscellaneous., scientific american, 1895-08-11

48 MUNN & CO. Patent Solicitors. 37 Park Row New York. ISSUED BY THE U. S. PATENT OFFICE., scientific american, 1871-01-07

MANUFACTURE OF COAL OIL., scientific american, 1864-01-02

window shades from curling on the sides when exposed COMMUNICATIONS RECEIVED. NEW BOOKS AND PUBLICATIONS. INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week Ending. January 4 1881 AND EACH BEARING THAT DATE. English

European Ordnance. partment. It is however when the naval mission passes t BERT'S APPARATUS fR NOTING EFFECTS OF AIR P MODE OF PLACING ANIMALS IN BERT'S AIR CYLINDER., scientific american, 1874-06-27

Why there are no Water-rats in Ireland. Catching Float Gold in Streams. NEW FUEL ECONOMIZER. Fig. 2VACUUM CHAMBER WITH TWO STEAM JETS FOR INJECTING HEATED AIR AND STEAM INT THE FURNACE. The Asser Process. Specific Heat of Gases. Fig. 1ORVIS

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. LX1XNo. 10. I r$3.00 A YEAR., scientific american, 1893-09-02

286 SCIENTIFIC AMERICAN MUNN 8. CO.Editors and Proprietors No. 361 Broa.dwa.y New York THAT FIRE PERIL AGAIN. THE BLOCKING OF THE PORT ARTHUR ENTRANCE. Scientific American DEPARTURE OF THE PANAMA CANAL COMMISSION. STEEL ROADS FOR COUNTRY DISTRICTS.

Utilizing the Power of Niagara. Test Types. Lime and Clinker Bricks. _ Warehouses Found at Rome. Improvement in the Uses of Chloroform. v. II Su Another Electrical Exhibition in Paris., scientific american, 85-09-12

FLOWERS OF PREY. BY Z. CARTER BEARD. VD 4 Upper Part of American Mantis with an Insect Which It is About to Devour. Deroplatys Sarwace from Borneo. PLOWER TRAM., scientific american, 1903-08-22

CHATEL'S DIRECT ACTING STEAM COCK. PERREAUX1 STEAM TRICYCLE. PERREAUX1 STEAK TRICYCLE. AI. 4P44 The Action of Saliva in the Stomach. Denver and South Park Railway. DIRECT ACTING STEAM COCK. CRATEL1, scientific american, 1882-11-04

ENGINEERING INVENTIONS. oMECHANICAL INVENTIONS. AGRICULTURAL INVENTIONS. MISCELLANEOUS INVENTIONS., scientific american, 1883-07-11

THE ODORS OF METALS. AERIAL NAVIGATION PRIZES., scientific american, 1907-02-16

scientific american, 1878-03-30

ENGINEERING INVENTIONS. Earthquake at Sea. Converting Water into Steam Without Heat. The Lawson Boiler Experiment. oll 4010 O. Ground Air as a Source of Disease. Courtship and Marriage among the Choctaws of Mississippi. Tornadoes and How to Avoid

IMPROVED LAMP POST. FOLDING AND PASTING MACHINES. CLEARING ATTACHMENT FOR GRAIN DRILLS. GARDNER'S VIOLIN TUNING PEG. [FOR DESCRIPTION SEE PAGE 3091 FOLDING AND PASTING MACHINE. MITCHELL'S CLEARING ATTACHMENT FOR GRAIN DRILLS, scientific american,

NEW BOOKS AND PIBLICATIONS., scientific american, 1870-10-22

VARIETIES SEEDS FREE ACRICULTURAL EPITOMIST. EIGHT Varieties Farm and Garden Seeds Composed of the Following Varieties: And FOUR Varieties Flower Seeds. For 00 Cents. For 00 Cents. EPITOMIST PUBLISHING CO. 3 Burford Bldg. Indianapolis Ind. HENRY

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES INEW SERIES. Improvement in Mold Wheel Brick Machines. Pyro-tannin. SERGEANT'S PATENT BRICK MACHINE., scientific american, 1868-05-23

TO OUR. READERS. scientific american, 1865-11-18

AN IMPROVED ELECTRIC CURRENT REGULATOR. CROUCH'S RHEOSTAT.AN IMPROVED DRAUGHT EQUALIZER. BEVENS' DRAUGHT EQUALIZER. Planting Trees. AN AUTOMATIC CABLE PROPELLER FOR VESSELS. LOTZE'S CURRENT PROPELLER FOR VESSELS. A DEVICE FOR EXTINGUISHING FiRES ON

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. LXXIXNo. 17. rss.00 A YEAR. PILOT BOAT OF THE OLD SCHOOL. THE PILOTS AND PILOT BOATS OF NEW YORK. MODERN STEAM PILOT BOAT 'NEW YORK '—OWNED BY THE NEW

M. CARPENTIER'S IdELOGRAPH. New Cattle Cars and Momentum Brakes. Proposed College of Electrical Science. Increasing Need of Brain-work in the Arts. New Hair Dye. Fig. RDIAGRAM OF HARMONIUM. Fig. 3DIAGRAM OF THE IdELOGRAPH Fig. 1M CARPENTIER'S

THE ORIENTAL EAGLE OWL. THE HUMPBACK WHALE. tions. line. It throws Itself around in the water swimming some times on the back sometimes on the side or belly and often it is seen to stand up vertically in the water. In fact this animal displays

trength-Simplicity-Durability NEW BOOKS ETC. STEAM AUTOMOBILE Model E (like cut) $750 00 V $5.00 perpalr HANGERS 'CUSHMAN' CH TICKS THE CUSHMAN CHUCK CO. 189 Allyn St. Hartford Conn. ethweelifire2ope MOST POWERFULL WIRE ROPE MADE BRODERICK&BASCOM

Trial of the Charleston. 1-. Pilot Knob Iron Ore. TYPES OF THE FRENCH NAVY—THE CONDOR TORPEDO CRUISER. OP 414 Raw Materials., scientific american, 1889-09-28

Improved Geared Capstan. Porpoise and Shark Oil for Machinery. ATTERB DRY & REDDICK'S REFLECTOR LANTERN MORGAN'S GEARED CAPSTAN. MACHINES FOR MAKING SKATES. MESSRS. WINN & CO. TO THE READER., scientific american, 1864-01-23

Immense Pecuniary Losses Occasioned by Insects. ELECTRICAL PUMP. A MEASURING AND DRAWING IMPLEMENT. JAMES' MEASURING AND DRAWING TOOL. Progress in Military Ballooning. The Pike's Peak Railroad. Cement for Parchment Paper., scientific american,

AN IMPROVED LAMP EXTINGUISHER. AN IMPROVED DOUGH MIXER AND KNEADER. STONE'S DOUGH MIXER AND KNEADER. DRY BATTERY. DR. GASSNER'S DRY BATTERY. 415 4AN IMPROVED FIREPLACE AND HEATER. CLOUD & DEARMAN'S FIREPLACE AND HEATER. \ PAIGE'S LAMP EXTINGUISHER.

HINTS TO THE YOUNG STEAM FITTER. MECHANICAL INVENTIONS., scientific american, 1880-10-02

A New Island in the Pacific. MUNN & CO. Patents are Granted for Seventeen Years Adrertiontento. No. 37 Park now New York. THE BEST NEWSPAPER CIRCULAR SAWS k <te ( ) MANUFACTURED A c' ''CAN SO icle. Alv ___. TURBINE WATER WHEELS., scientific

THREE RECENTLY PATENTED NOVELTIES Fig. 2A BALL-BEARING WORM GEAR. Internal Water-way Improvements About Pittsburg. Fig. 1.--THE THURSTON METAL-BEATER. Favoritism to Workmen. The Current Supplement. January Buildina Edition. Fig. 3AN ODD MECHANICAL

witt and Davenport agents. NEw YORK NRwS LETTERThis is the title of PREMIUM. the fifth Volume of the Scientific) American. Ills ever issuedand contains about nihety engraving s INVENTORS AND IN THE WORLD! SIXTH VOLUME OF THE SCIENTIFIC AMERICAN.

Mammoth Remains., scientific american, 1853-07-30

TOWNSEND'S ARMY TENT., scientific american, 1862-03-29

Steps of Trolley Cars. Chinese Wood Oil. Timber Testing at Purdue., scientific american, 1906-11-24

NEW HOUSEHOLD INVENTIONS. William Richards Woodhull This consists of a scoop or body of peculiar form set angularly in a base piece or hoop the object being to provide a scuttle which may be easily manufactured. that it may be attached to a table and

to shore. Mr. FISHER—Why cannot flax be prepared by Ly man's steam-gun process ? Mr. RowELE—Every kind of vegetable fiber was tried but the insurmountable obstacle was the ex pense. the 'papyrus' and whether it has been used in modern times ? in

TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were Granted March 24 1891 AND EACH BEARING THAT DATE., scientific american, 1891-04-04

POLISHING WOOD. THE NATURAL FEATURES OF SOUTH AMERICA--NEW AND INTERESTING DISCO.VERIES. How to Fasten Rubber to Wood and Metal., scientific american, 1872-01-27

THE SCIENTIFIC AMERICAN., 1860-08-18

Zorreoponbence. Safety Devices Wanted. Wm. H. HIGBEE. Science Notes. the musk trade is the city of Tachien-lu in about 80° The Sheathing of Iron Ships. Armor Tests., scientific american, 1895-08-03

SLOTTING MACHINE. SEA WATER AS A BEVERAGE. SLOTTING MACHINE FOR HEAVY WORK., scientific american, 1878-04-20

Boiler Feeders Fire Pumps Pumping Machinery for all purposes. HUES & JONES WILMINGTON DEL. Pond's Tools MAHOGANY MACHINISTS' TOOLS. NEW HAVEN MANUFACWURING CO. New Haven Conn. DAVID W. POND Worcester Mass. X-X ambit CURED KIR li HAM HULETT & CHA N DL

THE INTERNATIONAL EXHIBITION OF 1876—PROGRESS OF THE MACHINERY DEPARTMENT. Editorial Amenities. THE UTILIZATIONS OF MICA., scientific american, 1876-04-15

A SIMPLE MIRROR GALVANOMETER. Fig 1-SENSITIVE ' HOKE MADE ' GALVANOMETER GLASS CHIMNEY. Fi 2.-METHOD OF MOUNTING PLAIN LENS. Fig. 4.-FORM FOR WINDING COILS. Fig. 5.-NEEDLE SUSPENSION. TOWER ABOVE SURFACE FOR OBSERVATION THE HOLLAND BOAT AT HIGH SPEED

G. H. M. asks : 1. Do you use a machine t COMMUNICATIONS RECEIVED. SCHEDULE OF PATENT FEES., scientific american, 1874-02-28

gum arable say a little more in pioportion than is contained in common writing ink all tendency plied by means of a delicate hair pencil and in tle most minute specks lines or stipples ; and afar specks and touches will be found to be clear and

Labor the Basis of Republican Institutions. Foreign Recognition of American Surgery. Hints to Public Speak ers and Singers. MANUFACTURING XINING AND RAILROAD ITEMS. NEW PUBLICATIONS., scientific american, 1868-01-11

Eke $rientific gkinerican. 325 RECENT AMERICAN PATENTS. ' Coal at Cost., scientific american, 1865-05-20

AM, scientific american, 1868-01-18

TION. JONES'S BENCH VISE. Experiments on Iron. Manufacturing and Business Items., scientific american, 1866-06-16

Legal _Notes. to effect the same result lation it is not infringed by the Dupont process, scientific american, 1903-09-26

ENGINEERING INVENTIONS., scientific american, 1886-07-11

ELECTRIC LIGHT. THE FULLER ELECTRICAL COMPANY MACHINE KNIVES AND AGRICULTURAL MACH% ALSO PARALLEL VISES FOR REICELSVILLEWARRENCO.N.J. Jarvis Furnace Co. Largest Belt Ever Made! g F.4 37 & 38 PARK ROW NEW YORK VALUABLE FLOURING MILL MACHINE. PORTER

have Minn i heating lighting and electrolytic powers but differ greatly in quantity and intensity. Under this supposition it is impossible for motion t take place., scientific american, 74-03-11

scientific american, 1878-02-23

A Scientific Expedition Lost. To Connect the Lakes with the Mississippi. Smoke Prevention in Massachusetts. Cultivation of the Chocolate Tree. The Mammoth in Alaska. The Aluminum Flashlight. New Use of Oxygen. Vanadiferous Oil., scientific american,

FURTHER NOTES ON THE NORTHERN ARMY WORK. Dangerous Freight. American Ironware in New Zealand. DECISIONS RELATING TO PATENTS. By the Commissioner of Patents., scientific american, 1880-09-04

IMPROVED PIPE TONGS. IMPROVED RECEIVER AND STENCH TRAP. INFLUENCE OF COSMICAL MATTER. New Agricultural Inventions. THORNTON'S ADJUSTABLE PIPE TONGS. DARK'S CAST IRON RECEIVER AND STENCH TRAP., scientific american, 1878-05-04

CROSBY STEAM GAGE & VALVE CO. TO BUSINESS MEN 361 Broadway New York. OIL WELL SUPPLY CO. Ltd. 91 dc 92 WATER STREET Pittsburgh Pa. Manufacturers of everything needed for 1NrigiTTAR ARTESIAN catalogue. Pierce A rteminn S dealers. Standard Typewriter

COMPUTER Adding Machine THE RAPID COMPUTER CO. Work' for Amateurs Experimental Science By 0OR0I . HOPKINS . REVISED and ENLARGED EDITION Cyclopedia Notes Oxieries. Of Receipts Price 85.00 in Cloth. 96.00 in Sheep. S6.50 in Half Morocco. Post Free.

every Advertisement. Single Copies Eight Cents. ORANGE JUDD & CO. PUBLISHERS 245 Broadway New York. FOOT LATHES SWIVEL HEAD ENGINELATHES GA GE MACHINE WORKS. WA T E R FORD.N.Y. LeCOTJE T S PATENT EXPANDING MANDREL Planing and Matching PATENT IMPROVED

NEW BOOKS AND PUBLICATIONS. TO INVENTORS. INDEX OF INVENTIONS For which Letter. Patent of the United States were Granted January 22 1889 AND EACH BEARING THAT DATE., scientific american, 1889-02-09

Improved Portable Steam Engine. Novel Use for Worthless Safes. A REMARKABLE BOY MECHANIC. 1Kerrialn and Dietrick's Lime Kiln. TOZER'S PORTABLE STEAM ENGINE. SIMONSON'S IMPROVED FILTERING CISTERN. The Artificial Volcano., scientific american,

BY W. H. LAWTON. NY DR. ALrBED GRADENWITZ. Another Daniel Comet. The Publication of the Prize Fourth Dimension Essay. NSW GASOLIZZ MOTOR PLOW, scientific american, -1909-06-26

SCHOIJFIELD'S CELEBRATED PATENTED. THE NEW YORK SCIENTIFIC AMERICAN AGENTS. Travelling Agents. Pat and the Traveller. THE ENGINEER'S AND MECHANIC'S By J. M. SCRIBNER A. M. HUNTINGTON & SAVAGE EVER POINTED GOLD PEN. IMPORTERS AND DEALERS Old

pounds will one that contains one cable foot of hydro gen raise from the ground ? A. About 495 grain. sup posing the India rubber to have no appreciable weight. S. How often must they be replenished if at all? A. There is no rule. It depends upon the

Heaton's Systemyof Defensive Armor. Further Illustrations of the Electric Wave. A Bald Head., scientific american, 1864-01-23

MONTGOMERY & CO.'S TOOL CATALOGUE. The Perfection of Pipe Threading No. flOS PIPE THREADING MACHINE THE MERRELL MFG. CO. 501 Curtiss St. Toled Ohio. Wanted in all important places of the United States BRUNSVIGA First Rate Improvements ! THE JOHNSON

Saturn. Uranus. Sun Spots. NEW BOORS AND PUBLICATIONS. DECISIONS OF THE COURTS. United States Circuit Court—Eastern District of New York. setts. NEW CHEMICAL AND MISCELLANEOUS INVENTIONS., scientific american, 1876-07-08

THE MORTAR FLEET AND MORTARS. SECTION OF MORTARS PLAN OF REVOLVING PLATFORM. SECTION OF SCHOONERS. SECTION OF MORTARS., scientific american, 1862-02-22

CYCLES. ARE THE HIGHEST OF ALL HIGH GRADES. 9.1i0verfisemenfo. ORDINARY RATES. Inside Page. each insertion - 75 cents a line Back Page. each insertion.S1.00 a line NO MORE DULL SHEARS! The DIAMOND SHEARS and Price 25 Cents. DRAWING MATERIALS and

Kirchhoff and Spectrum Analysis. The Crowning Achievement of Ophthalmic Surgery of the Present Century. To Color Iron Blue., scientific american, 1887-11-19

THE ADVOCATE OF INDUSTRY AND JOURNAL OF SCIENTIFIC MECHANICAL AND OTHER IMPROVEMENTS. THE PUBLISHED WEEKLY, scientific american, 1858-05-08

SCIENTIFIC AMERICAN ESTABLISHED 1845 MUNN & CO. Editors and Proprietors Published Weekly at No. 361 Broadway. New York 361 Broadway New York 361 Broadway New York INSERTION OF NIAGARA FALLS POWER COMPANY TUNNEL. FIRST CABLE STRUNG ON MANHATTAN

Ready-made Houses. The Chicago Cable Roads. HERVIER'S TUBULAR BOILER., scientific american, 1883-07-07

SCIENTIFIC INTELLIGENCE. USES OF GUN.COTTON. TEST FOR CHLOROFORM. INTERESTING EXPERIMENTS WITH SOLUBLE GLASS. IRON GUNPOWDER. ORIGIN OF GRAPHITE: LETTERS FROM THE SOUTH., scientific american, 1870-12-03

MIES $3 per Annum. The Darien Automatic Ventilator. The Use of Diamonds in the Mechanic Arts. MEAD'S AUTOMATIC VENTILATOR. 13 DICKINSON'S CARBON TOOL POINTS., scientific american, 1869-07-24

Declined., scientific american, 1872-01-11

THE PLASTER CENTER PIECE INDUSTRY. THE PLASTER CENTER PIECE INDUSTRY. E, scientific american, 1894-12-08

scientific american, 1896-07-25

What Flies Do.40 0 Prizes for Designs for a Concrete Villa. Ttenia and Raw Meat. Punctuality in all Things., scientific american, 1875-12-18

HOME-MADE BLOWPIPE. BY P. D. SWEET. DETAILS OF THE BLOWPIPE. THE BLOWPIPE IN USE. UNSCREWING A TIGHT JAR TOP. BY A. R. VAN DER VEER. UNSCREWING A TIGHT JAR TOP. CONSTRUCTION OF A SELENIUM CELL. HOME-MADE BRASS FURNACE. BY ALBERT P. BISHOP. A

INDEX OF INVENTIONS For which Letters Patent of the United States were Issued for the Week Ending AND EACH BEARING THAT DATE. Brake. H. L. F. Trebert 671409 A HEs.''' WALWORTH PIPE VISES RENEWABLE STEEL JAWS. 128 TO 136 FEDERAL STREET BOSTON There is

THE WASHINGTON GUN FACTORY. Discovery or 'Planets by Means of Photography BORING TURNING AND CHAMBERING HEAVY GUNS AT THE WASHINGTON GUN FACTORY. results will be plotted., scientific american, 1892-02-06

Sugar Houses and Plantations a Spe cialty. WESSELL METAL A PERFECT IMITA AND VALUABLE MEDICAL WORK. With engravingsprice $1. Dr. W. H. PARKER No. 4 Bulfinch Street Boston. Mantels and Registers. OVER 20000 ALREADY SOLD. T. F. ROWLAND Sole

KINS' PATENT VALVES ate Globe Angle Check and Safety. A-CTURED OF BEST STEAM METAL. mposition see that valves are stamped 'Jenkins Bros.' Remington Standard Type-Writer. It represents the highest point reached in writ ing machines. No one having much

New Last Machine. Book Backing Machine. Improved Bellows. New Boot Heel. New Marine Ventillator. Smoke Consumers. Substitute for (Win Woolen Manufac tures. Magnet Ore Separator. LIST OF PATBNTS INVNNTOR'S CLAIMS Spoons. Locks HOT AIR FURNACE.,

Concerning Drills and their Details. Suggestions concerning Steam Boilers. Diptheria in Fowls. NEW BOOKS AND PUBLICATIONS., scientific american, 1864-06-11

A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES., scientific american, 1891-08-01

ied OklaBe for the &tontine American New Orleans La.:, scientific american, 1866-06-09

riel Notes Cottetatt: Ivetttio, scientific american, 1904-10-15

JUNE 25 1870. B E I N P T A B, scientific american, 1870-06-25

INCLINED RAILROAD TO THE SUMMIT OF PIKE'S PEAK Vol. LXIVNo. 4. UNDER NEARING THE SUMMIT OF PIKE'S PEAK., scientific american, 1891-01-24

20 Nritntific A SPECIAL BRAZER FOR BICYCLE WORK. A PUNCTURE PROOF BICYCLE TIRE. RAMP'S BICYCLE TIRE. An Old Nall in Old Wood. AN IMPROVED BULLET LUBRICATOR. A NOVEL PLANT PROTECTOR. TAYLOR'S PLANT PROTECTOR. AN EFFICIENT ELECTRIC BICYCLE LAMP.

NEW MECHANICAL AND ENGINEERING INVENTIONS. NEW WOODWORKING AND HOUSE AND CARRIAGE BUILDING INVENTIONS. NEW AGRICULTURAL INVENTIONS. NEW HOUSEHOLD ARTICLES., scientific american, 1876-04-15

AN IMPROVED TRILL COUPLING. Mr. Stanley on Arrow Poison. AN IMPROVED RADIAL TUBE BOILER. IMPROVED TRUSS FOR BUILDINGS OR BRIDGES. IMPROVED KNIFE FOR PRINTERS' USE. DUS' KNIFE FOR PRINTERS' USE. GANDY'S TRILL COUPLING. WELLS' TRUSS FOR BUILDINGS OR

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