CHAPTERS Preface and Introduction 1  Greek Mythology 2  Greek Philosophers 3  Roman Encyclopedists 4  The Church, the Arabs, and Back to the Church   5  The Concept Of Circulation 6  Subterranean Engines 7  Superterranean Metrics 8  Hydrotheology/Theohydrology 9  Hollow Earth Geophysics 10  Underground Rivers in Classic Fiction 11  Boys Club 12  Waters of the Hollow Earth 13  Underground Rivers in Metaphor and Poetry 14  Underground Rivers in the Fine Arts 15  Groundwater Science 16  Karstology 17  Lava Tubes 18  Subterranean Geophysics 19  Dowsing 20  The Biology of Underground Rivers 21  Plying The Waters From Above 22  Constructed Waterways 23  The Dangers 24  The Rio San Buenaventura Conclusion

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Chapters 1-11
Chapters 12-24

The work is still in draft form.  What have I missed?  What did you like?  What did you not?
Where you find typos and language errors, e-mail me the phrase and I'll recognize the mistake and do the repair.  Thanks.

Richard J. Heggen 445 NW 8th Corvallis, OR 97330 (541) 753-1073 rheggen@unm.edu