We left Melbourne by rail for Adelaide, the capital of the vast Province of South Australia—a seventeen-hour excursion. On the train we found several Sydney friends; among them a Judge who was going out on circuit, and was going to hold court at Broken Hill, where the celebrated silver mine is. It seemed a curious road to take to get to that region. Broken Hill is close to the western border of New South Wales, and Sydney is on the eastern border. A fairly straight line, 700 miles long, drawn westward from Sydney, would strike Broken Hill, just as a somewhat shorter one drawn west from Boston would strike Buffalo. The way the Judge was traveling would carry him over 2,000 miles by rail, he said; southwest from Sydney down to Melbourne, then northward up to Adelaide, then a cant back northeastward and over the border into New South Wales once more—to Broken Hill. It was like going from Boston southwest to Richmond, Virginia, then northwest up to Erie, Pennsylvania, then a cant back northeast and over the border—to Buffalo, New York.

But the explanation was simple. Years ago the fabulously rich silver discovery at Broken Hill burst suddenly upon an unexpectant world. Its stocks started at shillings, and went by leaps and bounds to the most fanciful figures. It was one of those cases where the cook puts a month's wages into shares, and comes next month and buys your house at your own price, and moves into it herself; where the coachman takes a few shares, and next month sets up a bank; and where the common sailor invests the price of a spree, and the next month buys out the steamship company and goes into business on his own hook. In a word, it was one of those excitements which bring multitudes of people to a common center with a rush, and whose needs must be supplied, and at once. Adelaide was close by, Sydney was far away. Adelaide threw a short railway across the border before Sydney had time to arrange for a long one; it was not worth while for Sydney to arrange at all. The whole vast trade-profit of Broken Hill fell into Adelaide's hands, irrevocably. New South Wales law furnishes for Broken Hill and sends her Judges 2,000 miles—mainly through alien countries—to administer it, but Adelaide takes the dividends and makes no moan. 

Shillingsburg (p73) notes that the judge referred to, Judge William Windeyer, was not on Twain's train but was already in Adelaide on the 11th of October. The judge had paid a visit to Twain in Melbourne on the 10th and Shillingsburg suggests Twain was "telescoping into the train trip" the description of the judge's journey to Broken Hill, as told to him at the time of the judge's visit.