The World of the Great Forest; how Animals, Birds, Reptiles, Insects Talk, Think, Work, and Live

A Journey to Ashango-Land

Stories Of The Gorilla Country

My Apingi Kingdom

The Country Of The Dwarfs

In African Forest And Jungle

The Land Of The Midnight Sun V2

The World of the Great Forest

The Viking Age: the Early History, Manners, and Customs of the Ancestors of the English-Speaking Nations

The Land of the Midnight Sun

Explorations and adventures in equatorial Africa