Description: Gold Milling in the Black Hills, by Prof. H. O. Hofman, published by The American Institute of Mining Engineers, Rapid City, Dakota, February, 1889 — 45 pages — illustrated, plus a fold-out. Contents: The OresEnumeration of MillsOutline of Plant and ProcessGeneral Feature of the MillsThe Mills in Detail:GrizzliesRock-BreakersOre-BinsFeedersBattery-Foundations, Frames and GuidesMortarsBattery FramesGuidesDiesAmalgamated Copper PlatesScreens ' StampsCams and Cam-ShaftCrushing-CapacityApron-Plate, Mercury-Traps, Sluice-BoxesSteam-StampsLabor in the MillsWorking ResultsConclusions
Price: 23.2 USD
Location: Hilliard, Ohio
End Time: 2024-08-01T00:19:01.000Z
Shipping Cost: 4.63 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Binding: Softcover, Wraps
Place of Publication: Rapid City, Dakota
Publisher: American Institute of Mining Engineers
Subject: Gold-Milling
Modified Item: No
Original/Facsimile: Original
Year Printed: 1889
Language: English
Illustrator: American Institute of Mining Engineers
Special Attributes: Illustrated, Vintage Paperback, Fold-out illustration
Region: North America
Author: Prof. H. O. Hofman
Topic: Geology
Country/Region of Manufacture: United States
Character Family: Gold Mining
