=OTHER COUNTRIES.=--Patents are also obtained on very reasonable terms in France, Belgium, Germany, Austria, Russia, Italy, Spain (the latter includes Cuba and all the other Spanish Colonies), Brazil, British India, Australia, and the other British Colonies. An experience of =FORTY= years has enabled the publishers of THE SCIENTIFIC AMERICAN to establish competent and trustworthy agencies in all the principal foreign countries, and it has always been their aim to have the business of their clients promptly and properly done and their interests faithfully guarded. A pamphlet containing a synopsis of the patent laws of all countries, including the cost for each, and other information useful to persons contemplating the procuring of patents abroad, may be had on application to this office. =MUNN & CO.,= Editors and Proprietors of THE SCIENTIFIC AMERICAN, cordially invite all persons desiring any information relative to patents, or the registry of trade-marks, in this country or abroad, to call at their offices, 361 Broadway. Examination of inventions, consultation, and advice free. Inquiries by mail promptly answered. Address, =MUNN & CO.,= Publishers and Patent Solicitors, 361 Broadway, New York. =BRANCH OFFICES:= No. 622 and 624 F Street, Pacific Building, near 7th Street, Washington, D. C. Advertisements. =Inside Page, each insertion--75 cents a line.= =Back Page, each insertion--$1.00 a line.= The above are charges per agate line--about eight words per line. This notice shows the width of the line, and is set in agate type. Engravings may head advertisements at the same rate per agate line, by measurement, as the letter press. Advertisements must be received at publication office as early as Thursday morning to appear in next issue. [Illustration: STAR HACK SAW] On receipt of 25 cents we will send by mail, postage paid, a Hack Saw Frame and one Star Blade for cutting iron. This blade will cut off a half inch bar of iron more than one hundred times without sharpening, and at the rate of two cuts per minute. For 15 cents we will send a Keyhole Saw Handle and one Star Blade for cutting wood. These blades are all 9 inches long, and one dozen of either kind will be sent at any time for 70 cents. We warrant these patent saws to be very much better than any other kind in market. They will come into more general use than files when once introduced. Hardware dealers every where will furnish them on request. Millers Falls Co. =74 Chambers St., New York= [Illustration] CHARTER'S GAS ENGINE. Warranted equal to any in Power and Economy, and superior to all in Simplicity, and Compactness. Gives an Impulse at every Revolution. CHICAGO AGENT: H. H. Latham, 115 Monroe Street. NEW YORK AGENT. Zell Engineering Co., 112 Liberty Street. =Williams & Orton Mfg. Co. P. O. Box 148. STERLING, ILL.= $10.00 to $50.00