To The Working Class

We are now prepared to furnish all classes with constant employment at home, the whole of the time or for the spare moments. Business new, light and profitable. Persons of either sex easily earn from 5oc. to $5 per evening, and a proportional sum by devoting their whole time to the business. Boys and girls earn nearly as much as men. That all who see this notice may send their address, and test the business, we make this unparalleled offer: To such as are not well satisfied, we will send $1 to pay for the trouble of writing. Full particulars, a valuable sample, which will do to commence work on, and a copy of The People's Literary Companion--one of the largest and best family newspapers published--all sent free by mail. Reader, if you want permanent, profitable work, address E.C. ALLEN & CO., Augusta, Maine.

INVENTORS, AGENTS, MERCHANTS, and all Dealers in Patents or Patented Goods, should subscribe for the PATENT STAR, devoted to their Interests. Terms 5oc. per year. Send stamp for sample to

BENT, GOODNOW & CO., Boston, Mass.

WROUCHT IRON BEAMS & GIRDERS

The Union Iron Mills, Pittsburgh, Pa. The attention of Engineers and Architects is called to our improved Wrought-iron Beams and Girders (patented), in which the compound welds between the stem and flanges, which have proved so objectionable in the old mode of manufacturing, are entirely avoided, we are prepared to furnish all sizes at terms as favorable as can be obtained elsewhere. For descriptive lithograph address the Union Iron Mills. Pittsburgh, Pa.

ASHCROFT'S LOW-WATER DETECTOR will insure your Boiler against explosion. JOHN ASHCROFT, 50 John st.. New York. 16 tf

POWER LOOMS.

Impreved Drop Box. Spooling, Winding, Beaming, Dyeing, and Sizing Machines Self-Actmg, Wool-Scouring Machines, Hydra Extractors Also, Shafting, Pulleys, and Sen-Oiling Adjusable Han...ers [Transcribers note: word illegible], manuf'd by THOS. WOOD, 2106 Wood st., Philad'a. Pa

WOODBURY'S PATENT

Planing and Matching

and Molding Machmes, 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. 

BOILER FELTING SAVES TWENTY-FIVE PER CENT OF FUEL.

JOHN ASHCROFT,

50 John st. New York.

16 tf

Watch Swindles

Humbug Music

Boxes. Bogus Money. Four columns of "Ventilations" in the "STAR SPANGLED BANNER."

Buerk's Watchman's Time Detector

Important for all large Corporation and Manufacturing concerns--capable of controlling with the utmost accuracy the motion of a watchman or patrolman, as the same reaches different stations of his beat, Send for a Circular.

J.E.BUEBK,

P.O.Box 1,057, Boston, Mass.

N.B.-This detector is covered by two U. S. patents. Parties using or selling these instruments without authority from me will be dealt with according to law.

LATHE CHUCKS--HORTON'S PATENT--from 4 to 36 inches. Also for car wheels. Address

E. HORTON & SON, Windsor Locks, Conn.

CATALOGUES 10 CENTS EACH, SENT BY MAIL.

MATHEMATICAL INSTRUMENTS, 112 pages. OPTICAL INSTRUMENTS, 72 pages. MAGIC LANTERNS and STEREOPTICONS, 100pp. PHILOSOPHICAL INSTRUMENTS, 84 pages. JAMES W. QUEEN & CO., 924 Chestnut st..Philadelphia Pa

COTTON AND WOOL

SHODDY PICKERS

Of the most approved English pattern, built by RICHABD KITSON

Lowell, Mass.

Excelsior Lubricator

For Cylinders of Engines. The most durable and best oil cup, manufactured by B. E. LEHMAN, Lehigh Valley Brass Works. Bethlehem, Pa. Send for desc'ive circular

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

MACHINERY FOR SALE--

Consisting of steam engines, boilers, machinists' tools, planers from two to five feet wide, lathes from 1½ to 7-ft. swing, and one boring, turning, and slotting mill, of 8-ft. swing, trip hammer, blacksmith's tools, fire proof safes, portable mills, fan blowers, water wheels, pulleys, shafting, belting, platform scales, etc., etc.; all at prices that will insure a rapid sale. Send for schedule. Engines, water wheels, and machinery made to order.

GEOBGE T. McLAUTHLIN & CO.,

120 Fulton st., Boston, Mass.

M. N. FORNEY, Mechanical Engineer, 64 B'dway (Room 48), N.Y. Designs, Plans, Estimates and Working Drawings of Machinery. etc., promptly and accurately made. Instruction given in Mechanical Drawing to a limited number of pupils.

NEW SCROLL SAW (Moyer's Pat.), with--out Post or Gate; uniform Tension; no jarring or noise; executes better and faster than any other. Send for a circular.

HAMPSON & COPELAND,

42 Cortlandt st., New York.

Perfectly Reliable

Established 1863. Satisfaction Guaranteed. "Star Spangled Banner." 75 cents a year.

THE WOODWARD STEAM-PUMP MANUFACTUBING COMPANY, Manufacturers of the Woodward Pat. Improved Safety Steam Pump and Fire Engine, Steam, Water, and Gas Fittings of all kinds. Also, Dealers in Wrought-iron Pipe, Boiler Tubes, etc. Hotels, Churches, Factories, & Public Buildings, Heated by Steam, Low Pressure. Woodward Building, 76 and 78 Center st., cor. of Worth st. (formerly of 77 Beekman st.), N.Y. All parties are hereby cautioned against infringing the Pat. Bight of the above Pump. G. M. WOODWABD, Pres't.

CAMDEN

Tool and Tube Works,

Camden, N. J. Manufacturers of Wrought Iron Tube. Brass Work and Fittings, and all the most improved TOOLS for Screwing, Cutting, and Fitting Pipe. Screwing Machines for Pipe, of five different sizes. Pipe Tongs, Common and Adjustable; Pipe Cutters, Pipe Vises, Taps, Bearners, Drills, Screwing Stocks, and Solid Dies. Peace's Patent Screwing Stocks, with dies. No. I Screws ¾, 3/8, ½, ¾, Pipe. Price complete, $10. No. 2 Screws, 1, 1¼, 1½, 2 Pipe, $20. No. 3 both screws and cuts off, 2½, 3, 3½, 4, $65.