Read it through once

Ballarat was a swarming city of tents in the early days. Everybody was happy, for a time, and apparently prosperous. Then came trouble. The government swooped down with a mining tax. And in its worst form, too; for it was not a tax upon what the miner had taken out, but upon what he was going to take out—if he could find it. It was a license tax— license to work his claim—and it had to be paid before he could begin digging.