Towards the end of the Equator cruise, RLS started trying to put together the material he had collected about South Seas culture, language, traditions and society: anthropology, history, sociology together with personal impressions. He had already agreed with S. S. McClure (in 1888) to sell him "letters" from the South Seas to be syndicated in newspapers and magazines. These he hoped to use for materials for the "big book" on the Pacific.