Notwithstanding these things, not one person in ten knows what the Great Lakes stand for to-day. While a thousand writers have sung of the greatness and romance of the watery wastes that encircle continents, none has told of those “vast unsalted seas” which mean more to eighty-five millions of Americans than any one of the five oceans. What has been written has been for those who find their commerce upon them; for the owners of ships and the masters of men; for the kings of ore and grain--a little statistical matter here and a little there, but nothing for the millions who are not at hand to feel the pulse of traffic or to see the great commercial pageant as it passes before their eyes. Even of those who live in the States bordering the Great Lakes but few know that these fresh-water highways of traffic possess the greatest shipping port in the world, that upon them floats the largest single fleet of freighters in existence, that in their great construction yards shipbuilding has been reduced to a science as nowhere else on earth, and that in their life the elements of romance and tragedy play their parts even as on the big oceans that divide hemispheres. In a small way the general lack of knowledge of the Great Lakes is excusable, for their development has been so rapid and so stupendous that people have not yet grasped its significance. Within the last quarter of a century or less they have become the industrial magnets of the nation. Along their shores have sprung up our greatest cities, with populations increasing more rapidly than those of New York, Boston, Philadelphia, or San Francisco. In the eight States which have ports on them is more than one third of the total population of the North American continent. Along their three thousand three hundred and eighty-five miles of United States shore line will be built this year more than one half of the tonnage constructed in America, and over their highways will travel at least six times as much freight as all the nations of the world carried through the Suez Canal in 1908. Just what this means it is hard for one to conceive when told only in figures. Perhaps in no better way can the immensity and importance of their traffic be described than by showing briefly one of the ways in which they earned a “dividend” of six dollars for every person living in the United States in 1907. This immense “dividend” did not go into the coffers of corporations, but actually, though indirectly, into the pockets of the people. [Illustration: Second Step--Laying the Keel, or Bottom of the Ship, on the “Keel Blocks.”]