Technology
_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,...
_Cradle._--The rocker or cradle is still less than the tom and inferior in capacity. It bears some resemblance in shape and size to a child's cradle, and rests upon similar rock...
4. Chapter 4_Beach-Mining._--Beach-mining is the business of washing the sands of the ocean-beach. Between Point Mendocino, in California, and the mouth of the Umpqua River, in Oregon, the...
2. Chapter 2The best method of catching very fine gold by amalgamation is to cover a large copper plate with mercury, and let the dirt and water, in a thickness of not more than a quarter o...
5. Chapter 5_Chilean Mill._--The Chilean mill has a circular bed like the arastra, but much smaller, and the quartz is crushed by two large stone wheels which roll round on their edges. In...
1. Chapter 1_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 gr...
6. Chapter 6"This is not one of the many petty leads, an inch or two in breadth and thickness, which, after being traced a few hundred feet, end as suddenly and mysteriously as they commenc...