There were labour contractors by the half-hundred - fitters and riveters, European, borrowed from the railway workshops, with, perhaps, twenty white and half-caste subordinates to direct, under direction, the bevies of workmen - but none knew better than these two, who trusted each other, how the underlings were not to be trusted. They had been tried many times in sudden crises - by slipping of booms, by breaking of tackle, failure of cranes, and the wrath of the river.