Chapter D: C. ALLEN & CO., Augusta, Maine

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_IMPORTANT_

TO MACHINISTS.--The Best Metal for all Machine Uses is the MARTIN STEEL, made by THE NEW JERSEY STEEL AND IRON CO., Trenton, N. J. This steel is made by an entirely different process from any other and is tougher than wrought iron. It can be turned without annealing, being entirely free from hard spots. Every one who uses it pronounces it just what they have long wanted, for a multitude of uses, such as Crank Pins, Lathe Spindles and Screws, Cotton Machinery Rollers, Saw and Fan Spindles, etc., etc. Also, particularly adapted for Firebox Plates. Prices low. Send for further information, or a sample, stating use to which it is to be applied.

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OTIS' SAFETY HOISTING MACHINERY. OTIS, BROS. & CO. No. 309 BROADWAY, NEW YORK.

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Union Emery Wheels.

Solid and with Stone Center. UNION STONE CO., Boston, Mass. Branch Office, 93 Liberty st., N. Y.

General Agents for the Am. Twist Drill Co.'s Superior Grinder and other Emery Wheel Machinery and Tools. Send for Circular.

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WOODBURY'S PATENT _PLANING AND MATCHING_ and Molding Machines, Gray & Wood's Planers, Self-oiling Saw Arbors, and other wood working machinery.

S. A. WOODS, {91 Liberty street, N. Y.;
Send for Circulars. {67 Sudbury street, Boston.

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RICHARDSON, MERIAM & CO., Manufacturers of the latest improved Patent Daniels' and Woodworth Planing Machines, Matching, Sash, and molding, Tenoning, Mortising, Boring, Shaping, Vertical, and Circular Re-sawing Machines, Saw Mills Saw Arbors, Scroll Saws, Railway, Cut-off, and Rip-saw Machines, Spoke and Wood Turning Lathes, and various other kinds of Wood-working Machinery. Catalogues and price lists sent on application. Manufactory, Worcester, Mass. Warehouse, 107 Liberty st., New York. 17 1

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REYNOLDS' TURBINE WATER WHEELS.

The Oldest and Newest. All others only imitations of each other in their strife after complications to confuse the public. We do not boast but quietly excel them all in staunch reliable, economical power. Beautiful pamphlet free. GEO. TALLCOT, 96 Liberty st., New York.

GEARING, SHAFTING.

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_NIAGARA STEAM PUMP._ CHAS. B. HARDICK, Adams st., Brooklyn, N. Y.

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MODELS, PATTERNS, EXPERIMENTAL, and other machinery, Models for the Patent Office, built to order by HOLSKE MACHINE CO., Nos. 528, 530, and 532 Water st., near Jefferson. Refer to SCIENTIFIC AMERICAN office. 14 tf

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1832. SCHENCK'S PATENT. 1870. WOODWORTH PLANERS.

And Re-Sawing Machines, Wood and Iron Working Machinery, Engines, Boilers, etc. JOHN B. SCHENCK & SON, Matteawan, N. Y., and 118 Liberty st., New York.

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WANTED--AGENTS, $20 PER DAY, TO sell the celebrated HOME SHUTTLE SEWING MACHINE. Has the under-feed, makes the "lock stitch" alike on both sides, and is fully licensed. The best and cheapest Family Sewing Machine in the market. Address JOHNSON, CLARK & CO., Boston, Mass.; Pittsburgh, Pa.; Chicago, Ill., or St. Louis, Mo.

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MILLING MACHINE, INDEX, STANDARD, UNIVERSAL, AND HORIZONTAL.--The largest variety to be found in the country, on hand and finishing. Workmanship, Material, and Design unsurpassed. Machines on exhibition at Fair of American Institute. UNION VISE CO. OF BOSTON. Office 80 Milk st. Works at Hyde Park, Mass.

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_ANDREW'S PATENTS._ NOISELESS, FRICTION GROOVED, PORTABLE, AND WAREHOUSE HOISTERS. FRICTION OR GEARED MINING & QUARRY HOISTERS. SMOKE-BURNING SAFETY BOILERS. OSCILLATING ENGINES, DOUBLE AND SINGLE, 1-2 TO 100-HORSE POWER. CENTRIFUGAL PUMPS, 100 TO 100,000 GALLONS PER MINUTE, BEST PUMPS IN THE WORLD, PASS MUD, SAND, GRAVEL, COAL, GRAIN, ETC., WITHOUT INJURY. ALL LIGHT, SIMPLE, DURABLE, AND ECONOMICAL. SEND FOR CIRCULARS.

WM. D. ANDREWS & BRO., 414 Water street, New York.

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$150 A MONTH! EMPLOYMENT! EXTRA INDUCEMENTS!

A premium HORSE and WAGON for Agents. We desire to employ agents for a term of seven years, to sell the Buckeye $20.00 Shuttle Sewing Machine. It makes a stitch alike on both sides, and is the best low-priced licensed machine in the world. W. A. HENDERSON & CO., Cleveland, Ohio, or St. Louis, Mo.

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ALLCOTT'S LATHES, for Broom, Hoe, and Rake Handles, for sale by