Rocks in His Head

FROM THE PUBLISHER: 

Some people collect stamps. Other people collect coins. Carol Otis Hurst's father collected rocks. Nobody ever thought his obsession would amount to anything. They said, You've got rocks in your head and There's no money in rocks. But year after year he kept on collecting, trading, displaying, and labeling his rocks. The Depression forced the family to sell their gas station and their house, but his interest in rocks never wavered. And in the end the science museum he had visited so often realized that a person with rocks in his head was just what was needed.