gajda george (12 resultados)

Hardcover. Condición: Good+. Estado de la sobrecubierta: /Good-. First Edition. GOOD+/GOOD-. white illustrated jacket, dust jacket in archival plastic protector. Large tear to jacket back cover, torn away top spine end, large creases to top edges of jacket, book is well bound and generally clean. Once Read Books, cover scan available - just ask, OnceReadBooks com Orders shipped via USPS.

Hardcover. Condición: Good. No Jacket. Former library book; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

Hardcover. Condición: Very Good. Estado de la sobrecubierta: Very good. First Edition. Previous owner's name.

Hardcover. Condición: Fine. No Jacket. Second edition. 214p, 22cm tall, octavo. Black leatherette over boards, gilt title on front and spine. "Methods of recoveries and refining from primary and secondary sources of precious metals such as major industrial uses in jewelry, electronics, and dentistry.".

Hardcover. Condición: Good. 1st Edition. text clean and unmarked. binding tight. boards have some wear along edges and at corners. edges of pages have toning and age-related stains. name written on front free end paper.

hardcover. Condición: Good.

HARDCOVER. Estado de la sobrecubierta: very good. 2nd edition. 214pp color illustrations octavo cloth. very good in slightly worn dustwrapper.

Hardcover. Condición: Fine. Estado de la sobrecubierta: Good. 1st Edition. Small hardcover octavo of pebbled black leatherette, stamped in gilt on the cover and spine, in fine, as new condition. Yje white dust jacket with intact price is in good condition, with slight edgewear, though the surface is rippled , and a light tide mark exists. Appears to have been damp at one time. published by the author, with editing and layout help from Alice Mohr. The author is an engineer with 25 years of experience in various industries. He successfully designed and built a gold processing and refining plant in the Los Angeles area. "Now for the first time, in one book, simplified and complete instructions on how to analyze, process, recover and refine your own GOLD - oron a commercial basis, fire assays of gold, platinum, silver and other metals, described in easy to follow articles."Detailed chapters on every aspect of gold refining and the properties of gold. 207 pp. Gold, Gold refining, Instructions for individuals, Education.

Hardcover. Condición: new. New Copy. Customer Service Guaranteed.

hardcover. Condición: New. In shrink wrap. Looks like an interesting title!

Textured Boards. Condición: Near Fine. Estado de la sobrecubierta: Near Fine (in mylar). Photographs/Graphs/Charts/Folded Maps/Rear Pocket Map Ilustrador. First Edition. Beautiful, gift quality copy. Unclipped dust jacket, in mylar. 214pp. Size: 8vo - over 7¾" - 9¾" tall. Hardcover.

Hard Back. Condición: Fine. Estado de la sobrecubierta: Fine. Second Edition. 214 Pages. Very attractive never-read book with black boards and gold lettering. Gold store label for The Prospectors Cache pasted to endpaper. Loose and could be easily removed. No other marks or stamps. This book is written specifically for entrepreneurs who contemplate going into the business of precious metals refining, or to increase their present technical capability in their businesses which may be jewelry fabrication, dental laboratories, metal re-cycling = of precious metals or electroplatinq. A large portion of this book is given to analytical work which enables the reader to recognize the value and purity of the materials. The gold and all the precious metals with which the gold is closely associated is valuable in any form and in any quantity and it is being re-processed and placed on the market. This book describes in detail how it is done on a commercial basis or in small quantities. This book may also serve as a source of basic knowledge for anyone who ventures to handle materials containing gold and other precious metals, and can be used as a reference for engineers and designers of extractive metallurgical processes. Contents in Six Chapters: The Chemical Properties of Gold, Identification of Material & Chemical Analysis, Gold Processing, Separations and Purification of Precious Metals Concentrates, Refining of Precious Metals, and Precious Metals and Their Alloys. Note: Chapter Five is omitted in the Contents Page and it is Titled Refini;ngof Precious Metals beginning on page 163.