While it was not projected as a money-making proposition, it will pay for its maintenance and a slight return upon the money invested from the beginning, and in a score of years will be not only self-supporting, but will yield a sufficient income to provide for the amortization of its capital in a hundred years. The story of how this titanic work was undertaken, of how it progressed, and of how it was crowned with success, is a story without a parallel in the annals of man. The canal itself, as Ambassador Bryce has said, is the greatest liberty man has ever taken with nature. Its digging was a steady and progressive victory over sullen and resistant nature. The ditch through Culebra Mountain was eaten out by huge steam shovels of such mechanical perfection that they seemed almost to be alive, almost to know what they were doing. The rocks and earth they bit out of the mountain side were carried away by trains operating in a system of such skill that it is the admiration of all the transportation world, for the problem of disposing of the excavated material was even greater than that of taking it out. The control of the torrential Chagres River by the Gatun Dam, changing the river from the chief menace of the canal to its essential and salient feature, was no less an undertaking. And, long after Gatun Dam and Culebra Cut cease to be marvels, long after the Panama Canal becomes as much a matter of course as the Suez Canal, men still will be thrilled and impressed by the wonderful machinery of the locks--those great water stairways, operated by machinery as ingenious as gigantic, and holding in check with their mighty gates such floods as never elsewhere have been impounded. It is a wonderful story that this book is undertaking to tell. There will be much in it of engineering feats and accomplishments, because its subject is the greatest of all engineering accomplishments. There will be much in it of the things that were done at Panama during the period of construction, for never were such things done before. There will be much in it of the history of how and why the American Government came to undertake the work, for nothing is of greater importance. There will be something in it of the future, looking with conservatism and care as far ahead as may be, to outline what the completion of this canal will mean not only for the people of the United States, but for the people of all the world. Much that might be written of the romantic history of the Isthmian territory--tales of discoverers and conquistadores, wild tales of pirates and buccaneers, serio-comic narratives of intrigue and revolution--is left out of this book, because, while it is interesting, it now belongs to that antiquity which boasts of many, many books; and this volume is to tell not of Panama, but of the Panama Canal--on the threshold of its story, fitted by a noble birth for a noble destiny. CHAPTER II GREATEST ENGINEERING PROJECT