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.

Woodbury's Patent

Planing and Matching

and Molding Machines, Gray & Wood's Planers, Self-oiling Saw Arbors, and other wood working machinery.

ICHARDSON, 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

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.

Niagara Steam Pump.

CHAS. B. HARDICK,

Adams st., Brooklyn, N. Y.

ODELS, 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

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.

ANTED - 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.

Milling Machine,

Ndex, 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.

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.

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.

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

L. W. POND, 98 Liberty st., New York.

NRIVALLED Hand Saw Mill, Self-feeding, with ease. Rip 3-in. lumber; guaranteed do work of 3 men. The only hand saw machine known, does as represented. Thousands in use. Send for circular.

WM. H. HOAG, Sole Manufacturer, 214 Pearl st. N. Y.

Best in the World - $290. Sent on trial - See large cut and terms in Scientific American. Oct. 1st 1870.

Dovetailing Machine.

ILL MAKE 400 DRAWERS PER DAY. See Scientific American, Jan. 11, '71. H. H. EVARTS, 93 Liberty st.; TREVOR & CO., Lockport N. Y.

CIRCULAR SAW MILLS.

AYS & NEWMAN'S PATENT DOUBLE PARALLEL EDGERS, FOSTER'S PATENT LOG-CANTING MACHINES, and Sawmill Machinery generally, manufactured by the Washington Mowing Machine Company.

LEROY MOWRY, Agent,
Sandy Hill, Wash. Co., N. Y.

Send for Illustrated Circulars and Price Lists.

To Electro-Platers.

ATTERIES, CHEMICALS, AND MATERIALS, in sets or single, with books of instruction, manufactured and sold by THOMAS HALL, Manufacturing Electrician, 19 Bromfield street, Boston, Mass. Illustrated catalogue sent free on application.

Rize Medal Scroll Saw

THOS. L. CORNELL, Derby, Conn.

PATENT RIGHTS SOLD ON COMMISSION.

By E. E. ROBERTS & CO., Consulting Engineers, 15 Wall St., N. Y.

Send Stamp for Circular.

Newspaper Advertising.

A Book of 125 closely printed pages, lately issued, contains a list of the best American Advertising Mediums giving the names, circulations, and full particulars concerning the leading Daily and Weekly Political and Family Newspapers, together with all those having large circulations, published in the interest of Religion, Agriculture, Literature, etc., etc. Every Advertiser, and every person who contemplates becoming such, will find this book of great value. Mailed free to any address on receipt of 25c.

GEO. P. ROWELL & CO.,

Publishers, No. 40 Park Row, New York.

The Pittsburgh (Pa.) Leader, in its issue of May 29, 1870 says:

"The firm of G. P. Rowell & Co., which issues this interesting and valuable book, is the largest and best Advertising Agency in the United States, and we can cheerfully recommend it to the attention of those who desire to advertise their business SCIENTIFICALLY and SYSTEMATICALLY in such a way: that is, so as to secure the largest amount of publicity for the least expenditure of money."

The Celebrated

Cold-rolled Shafting.

his Shafting is in every particular superior to any turned Shafting ever made. It is the most ECONOMICAL SHAFTING to buy, being so very much stronger than turned Shafting. Less diameter answers every purpose, causing a great saving in coupling, pulleys and hangers. It is perfectly round, and made to Whitworth Gage. All who give it a trial continue to use it exclusively. We have it in large quantities. Call and examine it, or send for price list.

Address

GEORGE PLACE & CO.,
126 and 128 Chambers st., New York.

N. Y. Machinery Depot.

EORGE PLACE & CO., Manufacturers and Dealers in Wood and Iron Working Machinery, of every description, Stationary and Portable Engines and Boilers, Leather and Rubber Belting, and all articles needful in Machine or Railroad Repair Shops. 126 and 128 Chamber st., New York.

Sturtevant Blowers.

hese are in every particular the best and most perfect Blower ever made. A full assortment of every size on hand, ready to deliver.