http://www.amazon.com/How-Make-Million-Dowsing-Drilling/dp/0...
This is a rare old book, talking about dowsing in general and specifically for oil.
Please contribute back by OCRing and Spellcheck/Proofreading this book.
I recommend ABBYY Finereader 11 (or similar) for doing this work in a relatively easy way. If you plan to do that please leave a comment here so the effort won't be duplicated by others. Please upload back the final pdf. Thank you.
Please note that the high quality scan images are posted here for a specific purpose - to make it easy to OCR/spellcheck the book and not spend 100 hours doing that from a crappy, lossy compressed pdfs that are sometimes posted here. So please don't waste your time asking why this is not a pdf file. Instead please contribute a few hours of your time and OCR and proofread the posted book. Thank you.
MsSVig