The fourth and last volume of Mythologiques, The Naked Man concentrates primarily on the mythology of the Native American populations in the area of Oregon and Washington, with some analogies to the Plains Indians and other parts of North America, and of course compares them with the South American myths from the first two volumes.
Among the sets of myths he discusses are the "Loon Woman" group, the "Lewd Grandmother" group, and the group concerning the war between the earth and sky people. He considers all the groups of North and South American myths to be a set of transformations of "One Myth" (the title of the penultimate chapter.)
The final chapter answers criticisms by (unfortunately unnamed) "philosophers" and then becomes a long digression giving a somewhat odd theory of music. There is an index of all the myths referred to in all four volumes, by the tribes they belong to (about 750 myths and well over a thousand variants.)
These four volumes are rather difficult and make a huge demand on the memory, but are vital for understanding the structuralist project (and remember that the "postmodernists" are also called the "poststructualists".)