THe Indians Knew Author:Tillie S. Pine THE INDIANS KNEW... — how to make an arrow fly straight through the air. — YOU.... — can make a drinking straw with "tail fins" fly straight through the air. See page 13. — THE INDIANS KNEW... — that rubbing causes heat. — YOU... — can prove this too. See page 23. — This book tells about make of the things the Indians knew. And it shows you how to pr... more »ove the Indians were right.« less