24. Where are rubber plantations found to-day? 25. What is the yearly output of the plantations? 26. What was the curious coincidence in the growth of the plantation industry? 27. What is meant by the Rubber Belt around the world? 28. What countries are the principal producers of rubber? 29. Why is the worker on a plantation better off than one who lives in the jungle? 30. When are trees ready to be tapped? 31. How are trees tapped? 32. How is rubber "cured" in the jungle? 33. How is it "cured" on the plantation? 34. Why is rubber manufacturing peculiarly an American industry? RUBBER PRODUCTS There are so many different articles made in whole or part of rubber that it would not be possible to list them all on this page. The following list of just a few of the thousands of rubber products made by the United States Rubber Company, the oldest and largest rubber organization in the world, will help you to think of many other articles made of rubber. TIRES "U.S." Royal Cord Automobile Tires. "U.S." Mono-Twin Truck Tires. "U.S." Traxion Tread Motorcycle Tires. "U.S." Bicycle Tires. "U.S." Royal Tubes for Automobile Tires. CLOTHING Raynster Raincoats. Naugahyde Belts for Men, Women and Children. Bathing Caps and Suits. FOOTWEAR Keds, the Standard Canvas Rubber-Soled Shoes. "U.S." Boots. "U.S." Arctics and Gaiters. "U.S." Rubbers. HARD RUBBER GOODS Battery Jars. Radio Parts. Dye Sticks. HOUSEHOLD Hot-water Bags. Rubber Gloves. Ice Caps. Tubing and Sheeting. Nursing Bottle Nipples. Toys. Fruit Jar Rubbers. MECHANICAL GOODS "U.S." Rainbow Packing. "U.S." Rainbow Transmission Belting. "U.S." Elevator and Conveyor Belts. "U.S." Hose for all purposes, including Garden, Steam, Suction, Water, Fire, Oil, Irrigation, etc. Paracore Insulated Wire and Cable. Moulded Goods in thousands of varieties, as, for example, Washers, Gaskets, Plumbers' Rubber Goods, Drainboard Mats, Bath Mats, etc. "U.S." Tile and Sheet Flooring. SUNDRIES Naugahyde Traveling Bags. "U.S." Royal Golf Balls. Balloons and Balloon Fabrics. NOTICE TO TEACHERS These booklets are intended for presentation to your pupils. A full supply will be sent to you, free of charge, if you will indicate the number of students in your class. Please address Educational Department United States Rubber Company 1790 BROADWAY New York City