Aryans

Foundations of the Nineteenth Century: With an introduction by Lord Redesdale. Volume 1

Houston Stewart Chamberlain

Evidence as to man's place in nature

by Thomas H. Huxley.

The origin of the Aryans: an account of the prehistoric ethnology and civilisation of Europe

by Isaac Taylor.

Man's place in nature and other essays

by Thomas Henry Huxley ; with an introd. by Sir Oliver Lodge.

The mythology of the Aryan nations.

George W. Cox

Rasse und Kultur: eine kritische Untersuchung der Rassentheorien

von Friedrich Hertz.

Le comte de Gobineau et l'aryanisme historique.

Seillière, Ernest Antoine Aimé Léon

A jornada dos seculos ...

Alberto Pimentel

The evolution of the Aryan

by Rudolph von Ihering ; translated from the German by A. Drucker.

Die ehemalige Spracheinheit der Indogermanen Europas.: Eine sprachgeschichtliche Untersuchung.

Göttingen, 1873.