C. Metal Mining.
This subdivision embraces all workers employed in the mining of gold, silver, copper, zinc, lead, tin, platinum, iron ore, etc., and in it are also organized all workers in the smelters, including the workers in the repair and mechanical departments, such as repairers, carpenters, machinists, ropemen, teamsters in the main and subsidiary enterprises, and also waiters, cooks in small mining camps.
D. Salt, Sulphur, Mineral, Stone and Gem Mining.
In this fourth subdivision of the mining department organization are brought together all workers employed in the mining of salt, sulphur, clay, borax, mica, bromine, graphite, sodas, gypsum, asphalt, limestone, sandstone, whetstone, marble, onyx, slates, building stones, asbestos, and gems of all kinds, like diamonds, sapphires, etc.
It includes all workers in the refineries, in the salines, salt and soda dry works, quarry workers, etc.
III.
DEPARTMENT OF TRANSPORTATION AND COMMUNICATION.
Brief Preface.
The process of transportation, different from the process of final distribution, comprises the act of bringing the products of land, water, and mines to the places of manufacture and general production, and to re-transport the partly finished goods either to other places at which the process of production is finished, or to bring the finished goods to the points where the distribution to the users or consumers takes place. This process also includes the transport of human beings to and from one place to another. As the interchange proc-
