Deutschland hat das best entwickelte Handelschul system der Welt. Einige Dchulen werden von Kaufmanns Vereinen unterstützt, andere von Städten und einige wenige vom Staat.
During the past year the rapid increase in the cost of copper and aluminum has led operating companies to investigate the feasibility of using iron and steel conductors for transmission and distribution purposes where small blocks of power are to be served. This Thesis gives the results of tests on...