Isbn: 9780919531406 - methods of placer mining (5 risultati)

Soft cover. Condizione: Fine. No Jacket. Science. This book is clean and bright, straight and tight with a name on inside of front cover but no marks on inside pages. This book explains the various methods used to recover gold from winnowing, one of the crudest methods, to the modern sluice, dredge and spiral gold panner. It also contains maps of gold producing regions of the west and drawings of various equipment in addition to both historic and modern photographs. Proceeds from the sale of this book benefit environmental restoration and education.…

Soft cover. Condizione: As New. 1st Edition. Contains three sections: Gold rushes of the world (includes British Columbia, Alaska, and the Yukon) - Placer creeks of B.C. - Methods of placer mining. 88p : ill., maps ; 20 cm. Clean, unmarked interior. Tight, square binding, no spine creasing - 'As New'. Weight, 128g. Lettermail postage - $6.00 or less.…

Condizione: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Paperback. Condizione: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.