An oil industry without geologists -- All I have to do is dream -- Petroleum spirits -- The psychics -- Introduction to dowsing -- Early oil dowsing -- Oil dowsing in the age of geology -- A world of oil dowsers -- Introduction to doodlebugs -- When doodlebugs ruled the Earth -- Doodlebugs around the world -- Twilight of the doodlebugs -- Looking back, looking ahead.
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