Quests old and new

<La >inferioridad mental de la mujer

<Les >essais de Montaigne

<An >investigation of the trinity of Plato and of Philo Judaeus and of the effects which an attachment to their writings had upon the principles and reasonings of the fathers of the Christian Church

<The >insanity of genius and the general inequality of human faculty, physiologically considered

Science et religion dans la philosophie contemporaine

Paradoxes psychologiques

Psycho-physiologie du génie et du talent

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