The revolt against civilization; the menace of the under man,

Mode of access: Internet.

An Outline of Christianity, the story of our civilization,

Mode of access: Internet.

Three visits to Madagascar during the years 1853-1854-1856 : including a journey to the capital : with notices of the natural history of the country and of the present civilization of the people /

"Appendix. Brief remarks on the Malagasy language": p. 411-426.

Torch of civilization; the story of man's conquest of darkness,

Mode of access: Internet.