Bøker av Gabriel Jars

Cet ouvrage présente des recherches et des observations sur les mines en Europe au XVIIIe siècle. L'auteur examine les pratiques minières dans différents pays, en se concentrant sur l'Allemagne, la Suède, la Norvège, l'Angleterre et l'Écosse. Il fournit également des illustrations pour aider le lecteur à comprendre les techniques minières décrites.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Ce livre présente une série d'observations et de recherches sur les mines de fer, leur fabrication de l'acier, et plusieurs autres mines de charbon de terre en Allemagne et en Suède. L'auteur explique en détail les procédés de fabrication et fournit également des informations historiques sur ces mines.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.