Marine Iron VVorks. Chicago . Catalogue free. U. S. metal polish. Indianapolis. Samples free. Presses & Dies. L- erracute Mach. Co., Bridgeton. N. J. Handle & Spoke Mcby. Ober Lathe CoChagrin Falls.O. [Screw mach mes, milling macmnes, ana drill presses. The Garvin Mach. Co., Iaierht and Canal Sts .. New York. Use the Houerh Security Cash Recorder. Entirely different from a Cash Register. Hough Cash R ecord er Co., Soutb B utler, N. Y. Wanted—Engine lathe, new or second hand; 42 Inch swing ; to take in work up to 20 feet. State full particulars, addressing C. H. S., P. O. Box 1822, N. Y. City. The best book for ejectneians ana beginners in electricity i S U Ex perim ent al Science/ by Geo. M. Hopkins. Bv mail. $4 ; Munn & Co. . publishers, 361 Broadway, N. Y. j I Wanted -First class draughtsman and machinist to design and take charge of the m ech am cal end of a machine being put upon the market. Only a first class man need apply for the position. Address W. W. Ewell, | Quincy, Mass. | Send for new and complete catalogue of Sei entifi c I and other Books for sale by Munn & Co., 361 Broadway, New York. Free on application .