Scientific American Volume Xxiv., No. 12, March 18, 1871 Part 30

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STEAM ENGINES & BOILERS

From 4 to 500 horse power including Corliss Engines, Slide Valve Stationary Engines, Portable Engines, etc. Also, Circular Saw Mills, Shafting, Pulleys etc. Wheat and Corn Mills, Circular Saws, etc.

Send for Price List.

WOOD & MANN STEAM ENGINE COMPANY, WORKS--UTICA, N. Y.

PRINc.i.p.aL OFFICE--42 CORTLANDT ST., NEW YORK.

DRILLS DIAMOND POINTED _STEAM DRILLS._

FOR ALL KINDS OF ROCK DRILLING, Mining, Quarrying, Tunneling, Railroad Grading, Well Boring, Prospecting, etc. Fifty to Seventy-five per cent of cost and time of hand labor saved. "Test Cores," in form of solid cylinders of rock or mineral taken out of mines from any depth not exceeding one thousand feet, showing true value, stratification, etc.

No percussion. Never require sharpening. FIRST PREMIUMS awarded in both American and Europe. Ill.u.s.trated Circulars sent on application.

Beware of infringements.

SEVERANCE & HOLT, Proprietors and Manufacturers, Office 16 Wall st., New York.

_NICKEL PLATING._ BEARDSLEE NICKEL AND MANUFACTURING CO., 82 AND 84 FULTON ST., BROOKLYN, N. Y.

RIGHTS sold for the use of, and instruction given in the best method of Nickel Plating. An experience of twelve years enables us to offer a solution and apparatus that remain practically unchanged for years, in constant use.

FIRST PREMIUM AWARDED

us by the AMERICAN INSt.i.tUTE in 1870. Critical examination of our work solicited. All goods sent to our Factory will meet with prompt attention.

New York Office--4 DEV ST., ROOM 2.

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BEST DAMPER REGULATOR for Steam Boiler. Send for Circulars.

Agents wanted. MURRILL & KEIZER, Baltimore, Md.

PAT. SOLID EMERY WHEELS AND OIL STONES, for Bra.s.s and Iron Work, Saw Mills, and Edge Tools. Northampton Emery Wheel Co., Leeds, Ma.s.s.

NO LIVE MECHANIC Can afford to be without some of BAIRD'S BOOKS FOR PRACTICAL MEN.

My new and enlarged Catalogue of PRACTICAL AND SCIENTIFIC BOOKS, 82 pages, 8vo., will be sent, free of postage, to any one who will favor me with his address.

HENRY CAREY BAIRD, Industrial Publisher, 406 Walnut St., PHILADELPHIA.

THE FIFTH GRAND STATE FAIR OF THE MECHANICS AND AGRICULTURAL STATE a.s.sOCIATION OF LOUISIANA

Will be held on the Fair Grounds of the a.s.sociation, in the city of New Orleans, commencing SAt.u.r.dAY, APRIL 8, 1871, and continuing nine days. Exhibitors are invited from every section of America. Railroads, steamships, and other transportation lines, as named in the Premium Catalogues, will carry exhibitors and their wares to and from the Fair at one half the usual rates. For further information see Premium Catalogue, which will be sent to any address free of charge.

LUTHER HOMES, Secretary and Treasurer, New Orleans, La.

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ROOT'S SAFETY BOILER.

For Pamphlets with Price List and Testimonials, address ROOT STEAM ENGINE CO,, 2d Ave., cor. 28th st., N. Y.

THE BEST IN THE MARKET.

_WIRE ROPE._ JOHN A. ROEBLING'S SONS, MANUFACTURERS, TRENTON, N. J.

For Inclined Planes, Standing Ship Rigging, Bridges, Ferries, Stays, or Guys on Derricks & Cranes, Tiller Ropes, Sash Cords of Copper and Iron, Lightning Conductors of Copper. Special attention given to hoisting rope of all kinds for Mines and Elevators. Apply for circular, giving price and other information. Send for pamphlet on Transmission of Power by Wire Ropes. A large stock constantly on hand at New York Warehouse, No. 117 Liberty street.

$732 IN 31 DAYS,

Made by one Agent, selling Silver's Broom. 100,000 in use. Recommended by Horace Greeley and _Am. Agriculturist_. One county for each Agent.

_Prices Reduced_. C. A. CLEGG & CO., New York, or Chicago, Ill.

AMERICAN SAW CO., MANUFACTURERS OF

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