20.  Who first thought of growing rubber trees on plantations?

21.  Why did he think it was better to grow them on plantations?

22.  How were the rubber seeds taken from Brazil?

23.  On what tropical island was the first plantation started?

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.