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Successful Drywashing by Jim Straight.
"For the Man Who Wants to Know The Secrets of Successful Drywashing." If you're into drywashing for gold, don't miss this book by expert Jim Straight. Has information that can be used with any type, style, or size drywasher. Features: old-timer tips, moisture calculations, troubleshooting, tables and charts, and more. Paperback, 5.5" x 8.5", 34 pages.
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Successful Drywashing
Table of Contents
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Illustrations
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Abstract & Introduction
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1
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Eluvial and Alluvial Placer Gold
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2
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Epithermal and Mesothermal Deposits
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3
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Wet and Dry Recovery Methods
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3
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What is Drywashing?
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4
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What is a Drywasher?
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5
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Evolution of Drywashing
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6
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Early Drywashing Procedures
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7
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Early Drywashing Practices
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8
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Hot and Dusty
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9
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Drywashing Areas
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10
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Drywashing Equipment
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10
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Drywashing Considerations
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11
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The Bellows Principle
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12
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The Constant Air Principle
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12
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Head-to-Head Comparison
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12
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Electrostatic
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13
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Motor Maintenance
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13
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Air-Cooled Engines
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13
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Rototiller and Cement Mixer
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14
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Pre-Drying the Dirt
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14
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Field Expedient Testing (Moisture)
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15
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Dry Material (Moisture Determination and Calculations)
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15
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Drywashing Dangers
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16
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Tips on "How To" Set Up
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17
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Bellows vs. Constant Air
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18
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Tips on "How to" Drywash
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19
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Sniping with a Small Drywasher
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21
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How to Backfill Holes
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22
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Summary
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22
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References
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24
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Appendix
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25
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Glossary
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33
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