Benjamin Franklin, the colonial American, maintained a now little-known interest in geological questions for more than sixty years. He began as a follower of English theorists, but soon assimilated some of their ideas with original speculations and discoveries, particularly regarding earthquakes. Though Franklin became famous for his experiments with electricity, he never attempted to explain earthquakes as if they were electrical phenomena; others, however, did. Through his access to American materials, Franklin contributed significantly to the work of several English and (...) French geological theorists. Though some of his own theories were ultimately of limited value, Franklin played an important role in the international science of his time. In addition to his other accomplishments, he was colonial America's foremost student of geology. (shrink)