'The animal ideal in America', Harpers
Tags: 1920s; 1929; 1929-8-1; Animal nature; Behaviorism (Psychology); Biology; Civilization; Communism; Cost and standard of living; Human beings; Keyserling, Hermann, Graf von; Materialism; Moral conditions; Philosophy; Soviet Union; United States; Zoology
'Arms and the instincts', Harpers
Tags: 1920s; 1922; 1922-1-1; Animal nature; Biology; Bullard, Arthur; Disarmament; Evolution (Biology); Human behavior; Human beings; Instinct; Zoology
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