This section is from "Scientific American Vol XXXVI. No. 8", by Munn & Co. Also available from Amazon: Scientific American Science Desk Reference.
SEE PHOTOGRAPHIC APPARATUS & CHEMICALS
complete, with directions, $10. No toy; takes pictures 4×5½ inches. Send for illustrated circular.
B. MORGAN, 14 Ann St. New York, P.O. Box 4349.
WANTED! SALESMEN at a salary of $1200 a year to travel and sell goods to Dealers. NO PEDDLING. Hotel and traveling expenses paid. Address. MONITOR MANUFACTURING Co., Cincinnati, Ohio.
$39
Each week to Agents. Goods Staple. 10,000 testimonials received. Terms liberal. Particulars free. J. Worth & Co. St. Louis, Mo.
$55 to $77 a Week to Agents. $10 Outfit Free. P.O. VICKERY, Augusta, Maine.
THE COMPOUND STEAM PUMP USES
steam expansively, hence economically. Simpler than any other. Only two moving parts in cylinder. No levers, springs, tappets, or reversing valves. Critical examination invited. Address E. & A. Betts, Wilmington, Del.
25
Beautiful Cards, with name, 10 cents, post paid. MILLPORT PRINTING CO., Millport, N.Y.
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
VINEGAR.
How made in 10 hours from Cider, Wine or Sorghum without using drugs. Name paper and address F.I. SAGE, Springfield Mass.
AGENTS.
64 page Illustrated Catalogue, Free. Boston Novelty Co., Boston, Mass.
The Toll-Gate! Prize Picture sent free! An ingenious gem! 50 objects to find! Address, with stamp, E.C. ABBEY, Buffalo, N.Y.
$984
Made by one Agent in 57 days. 13 new articles. Samples free. Address, C.M. LININGTON, Chicago.
LIGHTNING
SCREW PLATE.

Will make a perfect thread at one cut, and can be adjusted for wear. Send for catalogue to the agents,
FRASSE & COMPANY,
Dealers in Fine Tools, Files, Steel Wire & Supplies,
62 Chatham Street, New York.
ADVERTISEMENTS.
Inside Page, each insertion - - 75 cents a line.
Back Page, each insertion - - $1.00 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 Friday morning to appear in next issue.
GUARDIOLA'S
COFFEE & SUGAR MACHINERY
Coffee, Mait, Corn, Cocoa, and Grain-Drying Machine. Coffee-Hulling and Polishing Machines. Coffee-Washing Machine. Helix Sugar Evaporator.
Messrs. C. ADOLPHE LOW & CO., 42 Cedar Street, Messrs. MUNOZ & ESPRIELLA, 52 Pine Street, new York, are Mr. Guardiola's Agents, and they will give prompt attention to all orders for any of the above machines.
FOUR GRAND PRIZE MEDALS!
Awarded Our Exhibit at the Centennial!

Bliss's Illustrated Seed Catalogue And Amateur's Guide To The Flower And Kitchen Garden
200 pages, including several hundred finely executed engravings, and a beautifully colored lithograph, 35 Cents.
Bliss's Illustrated Gardener's Almanac And Abridged Catalogue
128 pages. Embraces a monthly calendar of operations, and a price list of all the leading Garden, Field and Flower Seeds, profusely illustrated, with brief directions for their culture. 10 cents.
Bliss's Illustrated Potato Catalogue contains a descriptive list of all the varieties recently introduced, with many other desirable sorts; also much useful information upon their cultivation. 10 cents.
B.K. BLISS & SONS,
34 BARCLAY ST., (P.O. BOX 5712.) NEW YORK.
Please state that you saw this advertisement in the Scientific American.
Wanted
A FIRST-CLASS MOLD MAKER ON Undertakers' Hardware. Address CRANE, BREED & CO., Cincinnati, O.

[ESTABLISHED 1846.]
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SIXTY THOUSAND inventors have availed themselves of Munn & Co.'s services in examining their inventions and procuring their patents.
MUNN & CO., in connection with the publication of the SCIENTIFIC AMERICAN, continue to examine inventions, confer with inventors, prepare drawings, specifications, and assignments, attend to filing applications in the Patent Office, paying the Government fees, and watch each case, step by step, while pending before the examiner. This is done through their branch office, corner F and 7th Sts., Washington. They also prepare and file caveats, procure design patents, trade marks, and re-issues, attend to rejected cases (prepared by the inventor or other attorneys), procure copyrights, attend to interferences, give written opinions on matters of infringement, furnish copies of patent business, both in this and in foreign countries.
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