Scientific American Volume 22, No. 1, January 1, 1870 Part 16

_The Charge for Insertion under this head is One Dollar a Line. If the Notices exceed Four Lines, One Dollar and a Half per line will be charged._

To ascertain where there will be a demand for new machinery or manufacturers' supplies read Boston Commercial Bulletin's manufacturing news of the United States. Terms, $4.00 a year.

Ties, timber, and lumber seasoned by steam, without a building. Costs $2, worth $20 per M. Stops eramacausis. H.G. Bulkley, N.Y.

Wanted--Light Machinery or Articles to Manufacture. Work done in a neat, prompt manner. Address W.E. Bradner & Co., 13 Mulberry st., Newark, N.J.

Pyrites wanted--Containing Gold, Silver, or Copper. Address A.G. Hunter, Jackson, Mich.

Those wishing articles of metal or light machinery manufactured, will find it for their interest to address J.B. Heald, Milford, N.H.

One horizontal stationary steam engine, with variable cut-off, 60-H.P.; one plain do., 25-H.P.; one do., 20-H.P.; one Portable 12-H.P., on hand and for sale low. Albertson & Dougla.s.s Machine Co., New London, Conn.

For sale cheap--Good 2d-hand plate iron. 50 plates 3-8 thick, 42 inches wide, 120 inches long. Been used 3 months for a floor. Price 3 cents per lb. Address box 1352, Norwich, Conn.

The head draftsman of a locomotive works, just closed, desires another engagement. Familiar with stationary, marine, or locomotive machinery.

Unexceptionable references. Watkins, 13 Dutch st., N.Y.

Wanted--Iron Planer about 4 ft., describe same and price, Geo. S. Grier, Milford, Del.

Wanted--Best Water Filter for Household purposes. Frank Alexander, Box 3769, New York.

A Brick Machine wanted. Address A. Hansen, Sumter, S.C.

For Sale for want of use--A 3-Horse portable steam engine and boiler, in perfect running order. Address B.S. Nichols & Co., Burlington, Vt.

Patent Rights bought and sold by R.T. Bradley & Co., 131 Fourth st., Cincinnati, Ohio.

Peck's patent drop press. For circulars, address the sole manufacturers, Milo Peck & Co, New Haven, Ct.

Every wheelwright and blacksmith should have one of Dinsmore's Tire Shrinkers. Send for circular to R.H. Allen & Co., Postoffice Box 376, New York.

For Small Engine Lathes, with foot-power, Hand Lathes, Bolt or Terret Cutters, Planers, etc., address W.E. Bradner & Co., Newark, N.J

Aneroid Barometers made to order, repaired, rated, for sale and exchange, by C. Grieshaber, 107 Clinton St., New York.

Foundery and Machine Business.--Experience with some capital, wants an engagement. South or West preferred. Address Box E.E., Catskill, N.Y.

Foreman in a Machine Shop--A person having ten years experience in that capacity is desirous of forming a new engagement. Address, with particulars, Postoffice Box 119, La Crosse, Wis.

Makers of Pipe Cutting and Tapping and s.c.r.e.w.i.n.g Machines send circulars, without delay, to Forest City Pipe works, Cleveland, O.

For Best Spring-bed Bottoms address S.C. Jennings, Wautoma, Wis.

Parties having patents or patent goods to sell, send for The National, Buffalo, N.Y., $1 per year, 10c. single copy.

Back Nos., Vols., and Sets of Scientific American for sale. Address Theo. Tusch, No. 37 Park Row, New York.

Mineral Collections--50 selected specimens, including gold and silver ores, $15. Orders executed on receipt of the amount. L. & J Feuchtw.a.n.ger, Chemists, 55 Cedar st., New York.

The Babc.o.c.k & Wilc.o.x Steam Engine received the First Premium for the Most Perfect Automatic Expansion Valve Gear, at the late Exhibition of the American Inst.i.tute. Babc.o.c.k, Wilc.o.x & Co., 44 Cortlandt st., New York.

For best quality Gray Iron Small Castings, plain and fancy Apply to the Whitneyville Foundery, near New Haven, Conn.

Keuffel & Esser, 71 Na.s.sau st., N.Y., the best place to get 1st-cla.s.s Drawing Materials, Swiss Instruments, and Rubber Triangles and Curves.

Foot Lathes--E.P. Ryder's improved--220 Center st., N.Y.

Those wanting latest improved Hub and Spoke Machinery, address Kettenring, Strong & Lauster, Defiance, Ohio.

For tinmans' tools, presses, etc., apply to Mays & Bliss, Brooklyn, N.Y.

Mill-stone dressing diamond machine, simple, effective, durable. Also, Glazier's diamonds. John d.i.c.kinson, 64 Na.s.sau st., New York.

Send 3-cent stamp for a circular on the uses of Soluble Gla.s.s, or Silicates of Soda and Potash. Manufactured by L. & J.W. Feuchtw.a.n.ger, Chemists and Drug Importers, 55 Cedar st., New York.

Glynn's Anti-Incrustator for Steam Boiler--The only reliable preventative. No foaming, and does not attack metals of boiler. Liberal terms to Agents. C.D. Fredricks, 587 Broadway, New York.

Cold Rolled--Shafting, piston rods, pump rods, Collins pat. double compression couplings, manufactured by Jones & Laughlins, Pittsburgh, Pa.

For solid wrought-iron beams, etc., see advertis.e.m.e.nt. Address Union Iron Mille, Pittsburgh, Pa., for lithograph, etc.

Machinists, boiler makers, tinners, and workers of sheet metals read advertis.e.m.e.nt of the Parker Power Presses.

Diamond carbon, formed into wedge or other shapes for pointing and edging tools or cutters for drilling and working stone, etc. Send stamp for circular. John d.i.c.kinson, 64 Na.s.sau st., New York.

The paper that meets the eye of manufacturers throughout the United States--Boston Bulletin, $4.00 a year. Advertis.e.m.e.nts 17c. a line.

Winans' boiler powder, 11 Wall st., N.Y., removes Incrustations without injury or foaming; 12 years in use. Beware of Imitations.

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C.H.G., of N.Y.--To make pure nitrate of silver, dissolve pure silver in pure nitric acid, evaporate the solution to dryness, or, if crystals are preferred, evaporate until the solution is sufficiently concentrated to form crystals. If you can not get pure silver, you may purify it by dissolving coin in nitric acid, filtering the solution and precipitating the silver in the form of a chloride by hydrochloric acid. Next wash the precipitate with hot water until the washings cease to redden litmus paper. Next mix the pure chloride of silver while yet moist with its own weight of pure crystallized carbonate of soda, place the mixture in a covered porcelain crucible and heat very gradually until the fusing point of silver is reached. The reduced silver will be pure and may be removed by breaking the crucible. Wash the b.u.t.ton thoroughly with hot water to remove the flux. In dissolving the pure silver thus obtained in nitric acid, it is better to use an excess of acid; the excess will be driven off by heat in evaporation.