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Hittel on Gold Mines and Mining John S Hittell
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Hittel on Gold Mines and Mining
John S Hittell
Chief Industry.-Mining is the chief industry of California. It employs more men and pays larger average wages than any other branch of physical labor. Although it has been gradually decreasing in the amount of its production, in the profits to the individuals engaged in it, and in its relative importance in the business of the state, it is yet and will long continue to be the largest source of our wealth, and the basis to support the other kinds of occupation. Metals obtained.-Our mines now wrought are of gold, silver, quicksilver, copper and coal. Ores of tin, lead, and antimony in large veins, beds of sulphur, alum and asphaltum; lakes of borax and springs of sulphate of magnesia, are also found in the state, but they are not wrought at the present time, though they will probably all become valuable in a few years.
| メディア | 書籍 Paperback Book (ソフトカバーで背表紙を接着した本) |
| リリース済み | 2017年3月26日 |
| ISBN13 | 9781544628325 |
| 出版社 | Createspace Independent Publishing Platf |
| ページ数 | 56 |
| 寸法 | 152 × 229 × 3 mm · 86 g |
| 言語 | 英語 |