This survey of current problems explored by oceanographers and geologists, of shortage to be solved by employing new sources of supply, makes use of recent studies and expeditions and is extremely broad in scope. The focus shifts from the specific duties of the scientists to the programs in which they are involved. Cousteau, Pleard, are a few of the men who are responsible for revealing many ocean secrets. Today marine biologists and geologists are busy exploring the possibilities of utilizing crops from the sea, of developing vehicles for more efficient underwater study (RUM program) of discovering what lies beneath the ocean's floor. Seismologists are anxious to control earthquakes. Volcanists in Hawaii are finding out about the gases emitted from volcanoes. The underground heat and power which give rise to geysers may be a possible source of energy. Speleologists explore caves with an eye toward their use as shelters and storehouses. A book which poses questions and points out directions is written for the student not the novice in this field.