You have to hammer away at the fact that the word “union” is the key to the extraordinary contrast afforded by the population of Yankee North America and the population of British North America; that the reason why there was expansion in the south was because the States were united, and that the reason why, until recent years, there was no expansion in the north was because, until recent years, the provinces were ununited. They were ununited politically (a common allegiance not involving concerted action) and they were ununited physically. Political union came by stages. The four principal eastern provinces (Canada West, Canada East, New Brunswick and Nova Scotia), as we have seen, joined forces forty-four years ago; distant Manitoba threw in its lot with them three years later; remote British Columbia entered the combination during the following twelve months, on condition that its isolation should be remedied by a railroad; and in 1873—or just thirty-eight years ago—with the adhesion of the remaining eastern province (Prince Edward Island) there came into existence the vast Dominion of Canada, embracing not merely the regions named above, but the enormous intervening and adjoining areas known as the North-West Territories. Political union was accomplished, but its permanence was contingent upon physical union also being accomplished, for British Columbia had stipulated for a railroad. Thus the newly-created Federal Government found themselves confronted by a task which for magnitude and difficulty would have been worthy the statesmanship of a Julius Cæsar. They had to furnish their geographical colossus with a steel backbone. They had to lay parallel rails round a wide arc of the earth’s circumference—traversing the untracked wilderness, skirting mountains and chasms, hewing a way through forests, blasting a way through rock, filling up bogs, lowering lakes and bridging rivers innumerable; they had to make a level roadway three thousand miles long, placing sleepers a foot apart along its entire length, and building stations at intervals of sixteen miles.