Patents

F COPYRIGHTS. CAN I OBTAIN A PATENT? Fora prompt answer and an bonest opmion, write to fil ü N N & CO., who liave had nearly flf ty years' experienee in the patent business. Cotnmunica tions strictly confldential. A IiandbooU of Information concerning Patenta and bow to ob tain them sent free. Also a catalogue of mechanical and scientiflo books sent free. Patenta taken through Munn & Co. reeeïvo special notice in the Scientifjc American, and tnus are brought widely before the public wilh. out cost to the inventor. This splendid paper, tssued weekly, elesantly illustrated, has by f ar the largest circulation of any scientifle work in tne world. $3 a year. Sample copies sent free. Building Bdition, monthly, $2.50 a year. Single copies, 25 cents. Bvery number contams beautiful platea, in oolors, and photographs of new houses. with plans, enabling builders to show tne latest desiKns and secure contracta. Address MUNN & CO, NEW YOHK, 31 BKOADWiT,