Alfred Russel Wallace

Man's Place in the Universe

Uit den Indischen Archipel. De Aarde en haar volken, Jaargang 1875

Social Environment and Moral Progress

The Remedy for Unemployment

Travels on the Amazon

Contributions to the Theory of Natural Selection

The Malay Archipelago, Volume 1

The Malay Archipelago, Volume 2

Is Mars habitable? A critical examination of Professor Percival Lowell's book "Mars and its canals," with an alternative explanation

Der Malaiische Archipel

La place de l'homme dans l'univers

Uit den Indischen Archipel