(About eight words to a line.)

Engravings may head advertisements at the same rate per line, by measurement, as the letter press. Advertisements must be received at publication office as early as Thursday morning to appear in next issue.

A Rare Opportunity, on Easy Terms.

To be sold at Auction, at Charleston, South Carolina, on Tuesday, the first day of April, 1879, the Taylor Iron Works, complete and in operation, together with all stores, stock, and work on hand on day of sale.

The above is a large, first-class engineering establishment, complete within itself for all kinds of work, comprising iron and brass foundries, boiler shop, machine shops, pattern and millwright shops, with a large stock of patterns for local machinery, and Taylor presses. Connected with the works is a large, well-stocked engineer and mill supply store. All departments have the best of modern tools in thorough repair. Buildings comparatively new, and conveniently arranged on large grounds. The business was established 1844; has always done a large business and maintained a high reputation. The present works, built since 1866, have ample facilities to work 200 men. At present about 100 men are employed. For further particulars apply to the works or to JOHN F. TAYLOR, Sharon Springs, N. Y., who will meet parties at Albany, N. Y., by appointment, or New York, if preferred.

LARGEST ASSORTMENT IN THE WORLD

of Plays, Dramas, Comedies, Farces, Ethiopian Dramas, Plays for Ladies only, Plays for Gentlemen only. Wigs, Beards, Moustaches, Face Preparations, Burnt Cork, Jarley's Wax Works, Tableaux, Charades, Pantomimes, Guides to the Stage, and for Amateurs Make up Book, Make up Boxes, New Plays. SAM'L FRENCH & SON, 38 East 14th St., Union Square, New York.

Catalogues sent FREE!!!

50Latest StyleCARDS.Bouquet, Lawn, Floral,etc., in case,name in gold, 10c. SEAVY BROS., Northford, Ct.

☞RARE OPPORTUNITY.☜

The proprietor, advanced in years and desirous of retiring from active control of business, wouldsell at a bargain, or convert into a joint stock company and retain an interest himself, a Foundry and Machine Shops, with all their machinery and fixtures complete, and now crowded with custom work, having cost upwards of sixty thousand dollars, and the only ones of magnitude for 120 miles on the Mississippi River, on various points of which may be seen specimens of work of these shops at Stillwater, Winona, McGregor. Dubuque, Fulton, Lyons, Clinton, Muscatine, and on many of the boats. For particulars, address the proprietor at Clinton, Iowa.

A. P. HOSFORD.

FOR SALE - GEAR CUTTER.

Been in use only eighteen months; will cut gears, both Spur-Bevel-Miter and Spiral, from four feet to one inch in diameter. Is complete with counter-shaft and several cutters. Machine made by Pond, of Worcester. Index made by Browne & Sharpe. Cost $900. Will sell for $250. Address J. G. STOWE, 126 Main Street, Cincinnati, O.

THE TRIUMPH NON-CONDUCTOR

weighs but 1½ lbs. to the square foot, and saves daily four pounds of coal. (Asbestos saves but 2 lbs.) Price 15 cts. - 5 cts. cash and 10 cts. after satisfactory trial. Agents wanted. For circulars showing WHY fuel is wasted and HOW 25 to 50 per cent., can be saved; also, HOW to construct reduction works for mineral ores of half the present weight and cost, to do three times the work with the fuel now used, and save 98 per cent. of assay; also, the opinions of distinguished engineers, address B. F. SMITH, New Orleans, La.

PHOTO VISITING CARDS- Now all the rage in Paris. One dozen beautiful gilt edged (round cornered) Cards with your name and photograph, only 60 cents; 2 dozen, $1. Full particulars and a 50-page book free. E. NASON & CO., 111 Nassau St., New York.

"BELL"TELEPHONES.Anyone can make in fifteen minutes. Send three 3c. stamps for "Where to get the Parts, Prices (Total $3.60 per pair), and how put together."

A. H. DAVIS, 30 Hanover St., Boston, Mass.

CATARRH. A Sure Cure.Samples by mail, 10c. GEO. N. STODDARD, Buffalo, N. Y. It cures others.It will cure you. Sample will prove.

ANY NUMBER OF OPPORTUNITIES

to buy what you want or sell or exchange what you don't want, in theProperty Journal. Send 5c. for copy.

ANDERSON & CO., 252 Broadway, New York.

Novelties, Notions,

Watches, Cheap Jewelry, Stationery Packages.

Agents and country stores supplied. Illustrated circularfree. J. BRIDE & CO., Manufacturers, Salesroom, 297 B'way, New York. Address letters to P. O. Box 2773.

FOR UNIVERSAL LATHE DOGS, DIE DOGS, ETC.,
send for circular to C. W. LE COUNT, S. Norwalk, Ct.

ICE-HOUSE AND COLD ROOM. - BY R. G.
Hatfield. With directions for construction. Four engravings. Supplement No.59. Price, 10 cents.

Send for our Priced and Illustrated Catalogues.

Part 1st -Mathematical Instruments, 160 pages; contains list and prices of Drawing Instruments, Drawing Materials, Pocket Compasses, Surveying Compasses, Engineers' Transits and Levels, Surveying Chains, Tape Measures, Pocket Rules, and Books relating to Drawing, Engineering, and Mechanics.

Part 2d -Optical Instruments, 144 pages; contains list and prices of Spectacles, Eye Glasses, Lenses, Spy Glasses, Telescopes, Opera and Field Glasses, Graphoscopes, Stereoscopes, Camera Obscuras, Camera Lucidas, Microscopes, Microscopic Preparations, and Books on Optics and Microscopy.

Part 3d -Magic Lanterns and Slides, 112 pages; contains list and prices or Magic Lanterns for Toys, for Public and Private Exhibitions, Sciopticons, Stereopticons, Scientific Lanterns, and accessory apparatus to be used with them; Magic Lantern Slides, both colored and uncolored.

Part 4th -Physical Instruments, 188 pages; contains list and prices of Instruments to illustrate Lectures in every department of Physics and Chemical Science, Air Pumps, Electric Machines, Galvanic Batteries, Barometers, Thermometers, Rain Gauges, Globes, Spectroscopes, Auzoux's Anatomical Models, and Books relating to Scientific Subjects.

JAMES W. QUEEN & CO.,
Optical and Philosophical Instrument Makers,
924 Chestnut St., Philadelphia.

Wood-Working Machinery,

Such as Woodworth Planing, Tonguing, and Grooving Machines, Daniel's Planers, Richardson's Patent Improved Tenon Machines, Mortising, Moulding, and Re-Saw Machines, and Wood-Working Machinery generally. Manufactured by

WITHERBY, RUGG & RICHARDSON,
26 Salisbury Street, Worcester, Mass.
(Shop formerly occupied by R. BALL & CO.)

The Driven Well

Town and County privileges for makingDriven Wellsand selling Licenses under the establishedAmerican Driven Well Patent, leased by the year to responsible parties, by

WM. D. ANDREWS & BRO.,
NEW YORK.

MINING MACHINERY. Engines. Boilers, Pumps,
Coal and Ore Jigs, Dust Burning Appliances. Drawings and advice free to customers. Jeanesville Iron Works (J. C. Haydon & Co.). Address HOWELL GREEN, Supt., Jeanesville, Luzerne Co., Pa.

IT PAYS to sell our Rubber Hand Printing Stamps. Goods delivered in any country. Circulars free.

G. A. HARPER & BRO., Cleveland, O.

FOR TEN DOLLARS CASH,

we will insert a seven-line advertisement one week in a list of 269 weekly newspapers, or four lines in a different list of 337 papers, or ten lines two weeks in a choice of either of four separate and distinct lists containing from 70 to 100 papers each, or four lines one week in all four of the same lists, or one line one week in all six lists combined, being more than 1,000 papers. We also have lists of papers by States, throughout the United States and Canada. Send 10 cents for our 100 page pamphlet. Address Geo. P. Rowell & Co., Newspaper Advertising Bureau, 10 Spruce Street, New York.

MACHINERY AT VERY LOW PRICES.

2d hand Lathes, Drills, Planers, Hand Tools for Iron Work, new Woodworth Planing Machines, Resawing, Tenoning, Moulding Machines, Scroll Saws, Portable Steam Engine. Jos. R. Blossom, Ass'e, Matteawan, N. Y.

The George Place Machinery Agency

Machinery of Every Description.
121 Chambers and 103 Reade Streets, New York.

60Chromo and Perfumed Cards [no 3 alike], Name in Gold and Jet, 10c. Clinton Bros., Clintonville, Ct.

ROOF PAINTING.For $5, by Post Office Order or express, I will send the recipe for making Langhorne's English Gum Coating Paint and other mineral paints, with full instructions for roof and sidewall painting. This paint is used by the U. S. Government. Address M. LANGHORNE, 708 E Street, Washington, D. C.

FOR SALE. - LETTERS PATENT OF
Wilhide's Celebrated Noiseless Self-setting Rat and Mouse Traps. Thoroughly introduced. Traps sold by all dealers. Address Owners and Manufacturers, J. T. WILHIDE & BRO., York Road, Carroll Co., Md.

IMPORTANT FOR ALL CORPORATIONS AND MANF'G CONCERNS. -Buerk's Watchman's Time Detector, capable of accurately controlling the motion of a watchman or patrolman at the different stations of his beat. Send for circular.

J. E. Buerk, P. O. Box 979. Boston, Mass

N. B. - The suit against Imhaeuser & Co., of New York, was decided in my favor, June 10, 1874. A fine was assessed against them Nov. 11, 1876, for selling contrary to the order of the court. Persons buying or using clocks infringing on my patent will be dealt with according to law.

SPARE THE CROTON AND SAVE THE COST.

Driven Or Tube Wells

furnished to large consumers of Croton and Ridgewood Water. WM. D. ANDREWS & BRO., 414 Water St., N. Y., who control the patent for Green's American Driven Well.

A New and Valuable Work for the Practical
Mechanic and Engineer.

Appletons' Cyclopaedia Of Applied Mechanics

A Dictionary of Mechanical Engineering and
the Mechanical Arts.
Illustrated by 5,000 Engravings.

Edited by PARK BENJAMIN, Ph.D.

This valuable work is now being published in semi-monthly parts, at fifty cents each. Active agents wanted. For terms and territory address GEO. W. DAVIS, care of D. APPLETON & CO., New York.

CAVEATS, COPYRIGHTS, TRADE MARKS, ETC.

Messrs. Munn & Co., in connection with the publication of the Scientific American, continue to examine Improvements, and to act as Solicitors of Patents for Inventors.

In this line of business they have had OVER THIRTY YEARS' EXPERIENCE, and now haveunequaled facilitiesfor the preparation of Patent Drawings, Specifications, and the Prosecution of Applications for Patents in the United States, Canada, and Foreign Countries. Messrs. Munn & Co. also attend to the preparation of Caveats, Trade Mark Regulations, Copyrights for Books, Labels, Reissues, Assignments, and Reports on Infringements of Patents. All business intrusted to them is done with special care and promptness, on very moderate terms.

We send free of charge, on application, a pamphlet containing further information about Patents and how to procure them; directions concerning Trade Marks, Copyrights, Designs, Patents, Appeals, Reissues, Infringements, Assignments, Rejected Cases, Hints on the Sale of Patents, etc.

Foreign Patents. - We also send,free of charge, a Synopsis of Foreign Patent Laws, showing the cost and method of securing patents in all the principal countries of the world. American inventors should bear in mind that, as a general rule, any invention that is valuable to the patentee in this country is worth equally as much in England and some other foreign countries. Five patents - embracing Canadian, English, German, French, and Belgian - will secure to an inventor the exclusive monopoly to his discovery among about ONE HUNDRED AND FIFTY MILLIONS of the most intelligent people in the world. The facilities of business and steam communication are such that patents can be obtained abroad by our citizens almost as easily as at home. The expense to apply for an English patent is $75; German, $100; French, $100; Belgian, $100; Canadian, $50.

Copies of Patents. - Persons desiring any patent issued from 1836 to November 26, 1867, can be supplied with official copies at reasonable cost, the price depending upon the extent of drawings and length of specifications.

Any patent issued since November 27, 1867, at which time the Patent Office commenced printing the drawings and specifications, may be had by remitting to this office $1.

A copy of the claims of any patent issued since 1836 will be furnished for $1.

When ordering copies, please to remit for the same as above, and state name of patentee, title of invention, and date of patent.

A pamphlet, containing full directions for obtaining United States patents sent free. A handsomely bound Reference Book, gilt edges, contains 140 pages and many engravings and tables important to every patentee and mechanic, and is a useful hand book of reference for everybody. Price 25 cents, mailed free.

Address

MUNN & CO.,
Publishers SCIENTIFIC AMERICAN,
37 Park Row, New York.

BRANCH OFFICE - Corner of F and 7th Streets, Washington, D. C.

Practical Draughtsman's Book Of Industrial Design And Machinists' & Engineers' Drawing Companion

Forming a Complete Course of Mechanical, Engineering, and Architectural Drawing. From the French of M. Armengaud the elder, Professor of Design in Conservatoire of Arts and Industry, Paris, and MM. Armengaud the younger, and Amoroux, Civil Engineers. Rewritten and arranged with additional matter and plates, selections from and examples of the most useful and generally employed mechanism of the day. By William Johnson, Assoc. Inst. C. E. Illustrated by fifty folio steel plates, and fifty wood cuts. A new edition, 4to $10

Among the contents are: Linear Drawing, Definitions, and Problems. Sweeps, Sections, and Mouldings, Elementary Gothic Forms, and Rosettes. Ovals, Ellipses, Parabolas, and Volutes. Rules and Principal Data. Study of Projections. Elementary Principles. Of Prisms and other Solids. Rules and Practical Data. On coloring Sections, with applications. Conventional Colors, Composition or Mixture of Colors. Continuation of the Study of Projection - Use of Sections - details of machinery. Simple applications - spindles, shafts, couplings, wooden patterns. Method of constructing a wooden model or pattern of a coupling. Elementary applications. Rules and Practical Data.

The Intersection and Development of Surfaces, with Applications. - The Intersection of Cylinders and Cones. The Delineation and Development of Helices, Screws, and Serpentines. Application of the helix - the construction of a staircase. The Intersection of Surfaces - applications to stop cocks. Rules and Practical Data.

The Study and Construction of Toothed Gear. - Involute, cycloid, and epicycloid. Involute, Cycloid. External epicycloid, described by a circle rolling about a fixed circle inside of it. Internal epicycloid. Delineation of a rack and pinion in gear. Gearing of a worm with a worm wheel. Cylindrical or Spur Gearing. Practical delineation of a couple of Spur wheels. The Delineation and Construction of Wooden Patterns for Toothed Wheels. Rules and Practical Data.

Continuation of the Study of Toothed Gear. - Design for a pair of bevel wheels in gear. Construction of wooden patterns for a pair of bevel wheels. Involute and Helical Teeth. Contrivances for obtaining differential Movements. Rules and Practical Data.

Elementary Principles of Shadows. - Shadows of Prisms, Pyramids, and Cylinders. Principles of Shading. Continuation of the Study of Shadows. Tuscan Order. Rules and practical data.

Application of Shadows to Toothed Gear. - Application of Shadows to Screws. Application of Shadow to a Boiler and its Furnace. Shading in Black - Shading in Colors.

The Cutting and Shaping of Masonry. - Rules and Practical Data. Remarks on Machine Tools.

The Study of Machinery and Sketching. - Various applications and combinations: The Sketching of Machinery. Drilling Machines; Motive Machines; Water wheels. Construction and Setting up of water wheels. Delineation of water wheels. Design of a water wheel. Sketch of a water wheel. Overshot water wheels. Water Pumps; Steam Motors; High-pressure expansive steam engine. Details of Construction; Movements of the Distribution and Expansion Valves; Rules and Practical Data.

Oblique Projections.

Parallel Perspective.

True Perspective. - Elementary principles. Applications - flour mill driven by belts. Description of the mill. Representation of the mill in perspective.

Examples of Finished Drawings of Machinery.

☞ The above, or any of our Books, sent by mail, free of postage, at the publication price.

Our new and enlarged Catalogue of Practical and Scientific Books - 96 pages, 8vo. - sent free to any one who will furnish his address.

Henry Carey Baird & Co.,
Industrial Publishers and Booksellers,
810 Walnut Street, Philadelphia.

Steam Pumps

HENRY R. WORTHINGTON,
239 Broadway, N. Y. 83 Water St., Boston.

The Worthington Duplex Pumping Engines for Water Works - Compound, Condensing or Non-Condensing. Used in over 100 Water-Works Stations.

Steam Pumps - Duplex and Single Cylinder.

Price List Issued Jan. 1, 1879, With A Reduction Exceeding 30 Per Cent

Water Meters. Oil Meters.

THIS NEW
ELASTIC TRUSS

Has a Pad differing from all others, is cup-shape, with Self-Adjusting Ball in center, adapts itself to all positions of the body, while theBALLin the cupPRESSES BACKtheINTESTINES JUST AS A PERSON WOULD WITH THE FINGER.With light pressure the Hernia is held securely day and night, and a radical cure certain. It is easy, durable and cheap. Sent by mail. Circulars free.

Eggleston Truss Co., Chicago, Ill.,

THE

Hancockinspirator

TESTIMONIALS.

Office of the Hancock Insp. Co.,
London, Eng., Feb. 11, 1879.

I have just received an order from the English Government for 22 Number 15 Inspirators - making 24 machines in all for the Government this month.

B. H. WARREN, Agent.

Office of H. S. Manning & Co., 111 Liberty St.,
New York, Feb. 26, 1879.

Gentlemen: We have authority from Mr. Martin, Chief Engineer Union Ferry Co., Brooklyn, to state that they have 17 Inspirators at work on 17 of their boats, feeding their main boilers, and all giving satisfaction, and to refer any one to him. Yours truly,

H. S. MANNING & CO., Agents.

☞Illustrated and Descriptive Circulars sent on application to

Hancock Inspirator Co.,52 Central Wharf,

BOSTON.

THIS NEW
MOSELEY IRON BRIDGE AND
ROOF CO.

Corrugated Iron

Buildings, Roofs, Shutters, Doors, Iron Sashes, Skylights, etc.

5 Dey Street, New York.

THIS NEW

Blake's Stone And Ore Breaker And Crusher

For breaking hard and brittle substances to any size. Endorsed by the leadingMining, Manufacturing,andRailroadcorporations in theUnited StatesandForeign Countries.First Premiumwherever exhibited, and hundreds of testimonials of thehighest character.

A NEW SIZE FOR PROSPECTING AND LABORATORY USE.

☞ All Stone Crushers not made or licensed by us, containing vibratory convergent jaws actuated by a revolving shaft and fly-wheel, are infringements on our patent, and makers and users of such will be held accountable. Address

BLAKE CRUSHER CO., New Haven, Conn.

Pulmocura An Absolute And Unfailing Remedy For Consumption

and all other diseases of theLungs and Throat. Mailed free on receipt of $1. A. A. MARTIN, Pulmocura Man'f'g Co., sole depot for the U. S., 60 East 12th St., cor. Broadway, New York.

Soft, Strong, and Smooth Iron or Brass

Castings

Plain, Galvanized, Bronzed or Nickled to order promptly.

Also patterns and models. Light work a specialty. LIVINGSTON & CO., Iron Founders, Pittsburg, Pa.

NEW STEEL HORSE SHOE

With Level Spring Platform - Continuous Calk. The best in the world. Cures Tender and Contracted Feet, Corns, Interfering, Quarter-crack Lameness, and all evils resulting from the use of the common shoe. Responsible men can make money selling this Shoe. Send for pamphlet. Trial set with nails, $1.00. To measure, place foot on paper, and draw pencil around.

The JOHN D. BILLINGS PATENT HORSE SHOE COMPANY
265 Broadway, New York.

LAP WELDED CHARCOAL IRON

Boiler Tubes, Steam Pipe, Light and Heavy Forgings, Engines, Boilers, Cotton Presses, Rolling Mill and Blast Furnace Work.

READING IRON WORKS,
261 South Fourth St., Phila.

Phosphor-Bronzebearings, Pump-Rods, Andspring Wire

Apply to
THE PHOSPHOR-BRONZE SMELTING CO., Limited,
2038 Washington Ave., Philadelphia, Pa.

Lathes, Planers, Shapers

Drills, Bolt and Gear Cutters, Milling Machines. Special Machinery. E. GOULD & EBERHARDT, Newark, N. J.

The Best Steam Pump In Americathe Deane

Made by HOLYOKE MACHINE CO.

More than 4500 in use.

Send for reduced Price List.
Deane Steam Pump Works
85 LIBERTY ST.,
NEW YORK.

Small Tools of all kinds; GEAR WHEELS, parts of MODELS, and materials of all kinds. Catalogues free. Goodnow & Wightman, 176 Wash'n St., Boston, Mass.

Fine Pamphletsprinted for75c. a Pageper 1,000. 1,000 Fine 9×12 Circulars, $2.50. Price list or estimate and samples for stamp. 250 Bill Heads, $1.

"Local" Printing House,Silver Creek, N. Y.

$77a Month and expenses guaranteed to Agents. Outfit free. Shaw & Co., Augusta, Maine.

Leffel Water Wheels

With recent improvements.

Prices Greatly Reduced.

7000 in successful operation.

FINE NEW PAMPHLET FOR 1877

Sent free to those interested

James Leffel & Co.,
Springfield, O.

109 Liberty St., N. Y. City.

J. A. Fay & Co'Swood Working Machinery

was awarded at the Paris Exposition over all competitorsTHE GOLD MEDAL OF HONOR. Also highest award at Phila., Santiago, Australia, and Vienna. It is

Original in Design, Simple in Construction,
Perfect in Workmanship, Saves labor,
Economizes lumber, and Increases
products of the highest standard
of Excellence.

Railroad, Furniture, and Agricultural Implement Shops, Planing Mills, etc., equipped at short notice, and the lowest cash prices. Send for Circulars.

J. A. FAY & CO., Cincinnati, Ohio, U.S.A.

L. F. STANDISH & CO.,
Screw Manufacturers,

Builders of Small Machinery and Fine Tools.

26 Artisan St., New Haven, Ct.

Emery Wheel.

NEW YORK BELTING AND PACKING COMP'Y.
The Oldest and Largest Manufacturers of the Original
SOLID VULCANITE
EMERY WHEELS.

All other kinds Imitations and Inferior. Our name is stamped in full upon all our standard BELTING, PACKING, and HOSE.

Address NEW YORK BELTING AND PACKING CO.,

NEW YORK.

JOHN H. CHEEVER, Treas.

The Seventh. Cincinnati Industrial Exposition

Opens for the reception of goodsAugust 20th.

Opens to the publicSeptember 10th, and continues open untilOctober 11th, in the

NEW PERMANENT BUILDINGS
ERECTED FOR THE PURPOSE.

Machinery Tested and Fully Reported upon.

Send for Rules and Premium Lists after April 1.

H. McCOLLUM, Sec'y.

THE FORSTER-FIRMIN GOLD AND SILVER AMALGAMATING COMP'Y of Norristown, Pa., will grant state rights or licenses or easy terms. This system works up to assay, and recovers the mercury rapidly. Apply as above.

THOMAS'S CONCENTRATED DYE
Stuffs. (138 Recipes SENT GRATIS.) (See Scientific American Supplement, March 15, '79.) Address

N. SPENCER THOMAS, Elmira, N. Y.

Baker Rotary Pressure Blower

(FORCED BLAST)
Warranted superior to any other.

WILBRAHAM BROS.
2318 Frankford Ave.
PHILADELPHIA

"The 1876 Injector."

Simple, Durable, and Reliable. Requires no special valves. Send for illustrated circular.

WM. SELLERS & CO., Phila.

The fact that this shafting has 75 per cent. greater strength, a finer finish, and is truer to gauge, than any other in use renders it undoubtedly the most economical. We are also the sole manufacturers of the Celebrated Collins' Pat. Coupling, and furnish Pulleys, Hangers, etc., of the most approved styles. Price list mailed on application to

JONES & LAUGHLINS,
Try Street, 2d and 3d Avenues, Pittsburgh, Pa.
190 S. Canal Street, Chicago, Ill., and Milwaukee. Wis.

☞ Stocks of this shafting in store and for sale by

FULLER, DANA & FITZ, Boston, Mass.
Geo. Place Machinery Agency, 121 Chambers St., N. Y.

VEGETABLE AND FLOWER SEEDS
WE SELLEVERYTHINGFOR THE

Garden

Descriptive Catalogues of 175 pages sent Free
PETER HENDERSON & CO.
35 Cortlandt St., New York.
FLOWER AND FRUIT PLANTS