Other large operations under his direction were in Colorado, Mexico, Korea, the Malay Straits Settlement, South Africa, and India (Burma). The Burma undertaking has been, in its outcome at least, and, indeed, in many other respects, Hoover's greatest victory in mining engineering and organization. It is today the greatest silver-lead mine in the world, although it started from as near to nothing as a mine could be and yet be called a mine. It took him and his associates five years to transform some deserted works in the heart of a jungle into the foremost producer of its kind in all the world. This mine is far away in the north of Burma, almost on the Chinese border. They had first to build eighty miles of railroad through the jungle and over two ranges of mountains, a sufficient feat of engineering in itself, and then to create and organize at the end of this line everything pertaining to a great mining plant. Thirty thousand men were employed in establishing the mine. Altogether Hoover and his associates had in their employment, in the various mining undertakings under way in 1914, about 175,000 men, and the annual mineral output of the mines being handled by them was worth as much as the total annual output of all the mines in California. And practically all of these successful mines had been made out of unsuccessful ones. For Hoover really developed a new profession in connection with mining; a profession of making good mines out of bad ones, of making bankrupt mining concerns solvent, not by manipulation on the stock exchange but by work in the earth, in the mills, in the mine offices. He works with materials, not pieces of paper. It takes him from three to five years to bring a dead mine to life; the mine must have mineral in it, to be sure, to start with, but he does all the rest. That little matter of having mineral in it is the whole thing, you may think. But if you do, you must think again. The history of mining is more a history of how mines with mineral in them have not succeeded in becoming mines where the mineral could be profitably got out of them, than of how such mines have succeeded. A successful mine is infinitely more than a hole in the ground with mineral at its bottom. It is railroads and steamers, mills, housing for men, men themselves, organization, system, skill, brains, all-around human capacity. Herbert Hoover is a great miner because he is--I say it bluntly and not from any blind hero-worship--a great man.