2009, ISBN: 1444638343, Lieferbar binnen 4-6 Wochen Gastos de envío:Versandkostenfrei innerhalb der BRD

Internationaler Buchtitel. In englischer Sprache. Verlag: ORION BOOKS LTD, 150 Seiten, L=140mm, B=216mm, H=9mm, Gew.=195gr, [GR: 27200 - TB/Erziehung/Bildung/Unterricht], [SW: - Educatio… Más…

Internationaler Buchtitel. In englischer Sprache. Verlag: ORION BOOKS LTD, 150 Seiten, L=140mm, B=216mm, H=9mm, Gew.=195gr, [GR: 27200 - TB/Erziehung/Bildung/Unterricht], [SW: - Education / Teaching], Kartoniert/Broschiert, Klappentext: PREFACE: The author has long believed that a practical, simple, and at the same time cheap work on the blowpipe, that included quantative assaying, would be appreciated by many who are interested in "mineral." This book is the result of that belief. The methods of assaying by means of the blowpipe furnace, as advocated herein, I can recommend ass more certain and practical in many cases than the old way. A larger quantity of ore is operated on, and the outcome does not depend so much on the skill, or want of skill, of the assayer.....Many of the earliest books, particularly those dating back to the 1900's and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork. PREFACE: The author has long believed that a practical, simple, and at the same time cheap work on the blowpipe, that included quantative assaying, would be appreciated by many who are interested in "mineral." This book is the result of that belief. The methods of assaying by means of the blowpipe furnace, as advocated herein, I can recommend ass more certain and practical in many cases than the old way. A larger quantity of ore is operated on, and the outcome does not depend so much on the skill, or want of skill, of the assayer.....Many of the earliest books, particularly those dating back to the 1900's and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.<