(Californiana) Kallenberger, W. W.: Memories Of A Gold Digger: Booklet. R. M. Kallenberger, Garden Grove, CA. 1970. B&W Illustrations: 1st Edition, 1st Printing. Very Good+
This is a trade sized booklet with illustrated cardstock covers and a stapled spine. The booklet is in Very Good+
condition and was issued without a dust jacket. There is some light wrinkling to the front spine of the book cover.
The text pages are clean and bright. "Hydraulic mining is a form of mining that uses high-pressure jets of water to
dislodge rock material or move sediment. [1] In the placer mining of gold or tin, the resulting water-sediment slurry
is directed through sluice boxes to remove the gold. It is also used in mining kaolin and coal. Hydraulic mining
developed from ancient Roman techniques that used water to excavate soft underground deposits. Its modern form, using
pressurized water jets produced by a nozzle called a "monitor", came about in the 1850s during the California Gold
Rush in the United States. Though successful in extracting gold-rich minerals, the widespread use of the process
resulted in extensive environmental damage, such as increased flooding and erosion, and sediment blocking waterways
and covering farm fields. These problems led to its legal regulation. Hydraulic mining has been used in various forms
around the world. " (from Wikipedia) #41876 $15
All orders ship within two business days. Standard mail is USPS Media Mail. Expedited and International shipping are also available. We offer combined shippping on multiple orders.
All items are guaranteed to be as described or they may be returned within 30 days of receipt for a full refund
Books or ephemera will be well packed to protect from damage during shipping.