Should the Nation Engage in Manufactures? American Export of Agricultural Machinery. Corundum. American Made Goods Exhibited as European Manufactures. The California Tea Fields. An Odd Craft. Progress of our Foreign Trade. The Condition of Manufacturing Interests in Germany. Labor in Chicago. Apples for Europe. Adulterated Graham Flour. Addition to our List of Food Fishes. Preservation of Milk. Electrical Test for Oils. Parsnips. Russian Pottery. Two engravings. Notes from the South.--Facts about the Cotton Worm. The Mediterranean Trade. American Competition in Great Britain. Rapid Increase in French Woolen Industries. The Rockport Granite Quarries. Trade Mark Treaty with Brazil. Early Manufacture of Steel Pens. New and Stale Bread. Leather from Sheep Stomachs. New Source of Rubber. A National Law Governing Adulteration Needed. How to get Pure Teas. Skilled Labor in New York City. French Subsoil and Clearing Plow. One figure. Opening for Trade in Madagascar. Handling Grain in Buffalo. The Blue Process of Copying Tracings. We Buy of them that Advertise. Unprofitable Agents. Various Uses of Paper. Improved Grinding Mill and Crusher. Two engravings. The Cultivation of the Common Nettle. The Economic Products of Seaweed. The Japanese Wax Tree in California. Preservation of Food by Gelatin. Pearl Millet. To Turn Oak Black. Dairy and Poultry Produce in America. Australian Gum Trees. Frauds in Wine Making. Removal of Iron Coloring from Liquors. The Utilization of Iron Slag. Relative Cost of Coal Transportation by Water and by Rail. How to get Rid of Ants. The Science of Milling. IX.--PRACTICAL RECIPES AND MISCELLANEOUS. Progress in England and America. An Improvement on Tea Chromos. A Correction. The Stability of Modern Civilization. Future Rifle Shooting. "Bruce," the Manchester Fire Horse. The Trial of the "Pyx." Early Gold Payments. Workingmen in England and France. Washington Memorials in Northamptonshire. Three engravings. Culinary Uses of Leaves. A Remarkable Bank Robbery.--Scientific Safeguards Neglected. Cleopatra's Needle. A Steam Juryman. Roads in Baden. Indications of Progress. Practical Education in Russia. Table Forks. The Cost of Insecurity. Improved Copying Pencils. Answers to Correspondents, embodying a large quantity of valuable information, practical recipes, and instructions in various arts. Single numbers of the _Scientific American Export Edition_, 50 cents. To be had at this office, and at all news stores. Subscriptions, _Five Dollars a year_; sent postpaid to all parts of the world. MUNN & CO., PUBLISHERS, 37 PARK Row, NEW YORK. To Advertisers:-->Manufacturers and others who desire to secure foreign trade may have large and handsomely displayed announcements published in this edition at a very moderate cost.