Having pieced together all the facts and circumstances in this connection, I was sure that I had grasped a principle of great commercial value, and I set about finding a cause why the world of capital should for so long have overlooked the tremendous potentialities of this industry. I found the cause in Boston herself, in the characteristics of the city, which was head-quarters for copper, and which had grown in financial power with the revenues her mines earned for her investors. Boston controlled and managed the copper industry, and had since the days when copper-mining was a hazardous pursuit, in which only bold and speculative souls dared engage. In the early days the canny Bostonian demanded for the honorable dollar his parent had earned--exchanging five-cent rum for human beings worth $1,000 apiece--at least twenty per cent. interest, and having acquired this habit, it became a principle, and such principles as these are clung to in Boston with the zeal of a miser for his hoard or of a martyr to his faith. Looking back over the years, I still recall with chagrin the quiescent hilarity of the scion of a Back Bay family whose good father had been one of the most successful and most brutal of all the "East India traders," when I suggested to him that he was fortunate in obtaining twenty per cent. on some copper ventures about which he was grumbling. (My readers must not confuse a Boston grumble with the ordinary ejaculations of discontent indulged in by the inhabitants of other portions of the world remote from the Hub of the Universe. A Boston grumble consists of an upward movement of the eyebrow, a slight twitch of the mustache and a murmur cross-bred from "Deuce take it!" and "Scoundrelly!") "Young man," he said, "my father said that such a hazardous venture as copper should return at least thirty per cent. to be safe, and I feel if I receive but twenty per cent. that something is radically and unpardonably wrong with the management of the mine." I did not pursue the argument, for I knew he inherited with his fortune a line of Boston reasoning, and I remembered once having watched a country boy put his tongue on a frosty iron door-knob. I knew better than to invoke again that wintry Boston smile, which in a Western or Southern community would be used to _frappe_ mint-juleps or cold-storage hogs with. No better illustration of the attitude of the shrewd New York investor to "Copper" can possibly be given than to detail my first interview with H. H. Rogers and William Rockefeller on the subject. To-day Mr. Rogers is known throughout the world as the leading figure of the copper world--the copper Czar, so to speak; yet it was only nine years ago when I said to him at the end of a gas-talk: "Mr. Rogers, would Mr. Rockefeller and yourself look into Copper?" "Copper?" said he in an amused way, "copper? What kind of copper?" "Why, copper such as we know in Boston--copper the metal, copper the industry, copper stocks."