Following the Equator: Chapter VI
Twain writes about the "recruiting" of islanders as agricultural workers in Queensland, Australia. He references Captain Wawn's book [ http://books.google.com/books?id=RqcTAAAAYAAJ&dq=Captain+Wawn&source=gbs... ] The South Sea Islanders and the Queensland Labour Trade: A Record of Voyages and Experiences in the Western Pacific, from 1875 to 1891 but suggests reading it along with the missionaries accounts.
Text and images from The Oxford Mark Twain and The Gutenberg Project.
Locations and dates for the most part are from Mark Twain Day By Day, a massive work by David Fears
(See notes marked MTDBD).