"The pay is small enough," said Captain Kettle, staring at the blue paper. "It's a bit hard for a man of my age and experience to come down to a job like piloting, on eight pound a month and my grub." "All right, Capt'n," replied the agent. "You needn't tell me what I know already. The pay's miserable, the climate's vile, and the bosses are beasts. And yet we have more applicants for these berths on the Congo than there are vacancies for. And f'why...