[en] In the Footsteps of Abraham Ulrikab Polar Horizons Inc.
[en] [Gutenberg 62749] • Strange Peoples Forgotten Books
[en] [Gutenberg 57336] • Ancient Britain and the Invasions of Julius Caesar Books for Libraries
[en] [Gutenberg 51881] • The Lost Atlantis and Other Ethnographic Studies Wentworth Press
[en] [Gutenberg 2530] • The Malay Archipelago, Volume 1 / The Land of the Orang-utan and the Bird of Paradise; A Narrative of Travel, with Studies of Man and Nature Createspace Independent Publishing Platform