Carpenter, Edward: Civilisation, its cause and its remedies, 1889 (I have read the book only in a Czech translation of 1910, and in quoting the book, I use a re-translation of the book's French title to English, so that it may happen not to be quite exact).
2.
Danek, Karel: Ales Hrdlicka, syn Vysociny. (in Czech: Ales Hrdlicka, the son of the Highlands)Prukopnfci z Horácka3, 1963.
3.
Danek, Karel:The Art of Recreation. Lectures read at the Surrimer University of Vaasa, Finland. Stencilled by the High Economic School at Vaasa-Vaasan Kesäyliopisto, 1966.
4.
Danek, Karel : Some Remarks on the development of the concept of "Adaptability". Scripta Medica, 1968, Nr. 5-6.
5.
Fetter, V.: Dr. Ales Hrdlicka, svetovy cesky badatel ve vede o cloveku. (In Czech: Ales Hrdlicka, the world Czech scientist in anthropology). Orbis , Praha, October, 1953.
6.
Hrdlicka, Ales: O puvodu a vyvoji cloveka a budoucnosti lidstva. (In Czech: On the origin and development of Man and on the future of Mankind). Praha, 1924.
7.
Robinson, E. Kay: The Man of the Future. The Nineteenth Century, 1883, pp. 759-764.
8.
Roux, Wilhelm : Terminologie der Entwicklungsmechanik der Tiere und Pflanzen (In German: The Terminology of the Evolution Mechanics of Animals and Plants). Leipzig1912, pp. 16-19.
9.
Soupault, Robert: Alexis Carrel 1873-1944. (In French). Paris, 1952.
10.
Sørensen, Jon : Fridtjof Nansens Saga. (In Norwegian: The Life Story of Fridtjof Nansen). Oslo, 1940 .
11.
Thorpe, Malcolm Rutherford: Organic Adaptation to Environment. New Haven, 1924.
12.
Virchow, Rudolf : Rede an der III. allgemeinen Sitzung. Tageblatt der 43. Versammlung Deutscher Naturforscher und Aerzte in Innsbruck vom 18.-24. September, 1869. (In German: Virchow: Speech at the 3rd General Assembly). pp. 192-193.
