This image, depicting what historians now refer to as the homunculus, has become iconic of the theory of preformationism, and appears in almost every textbook concerning the history of embryological science.
Esta imaxe, que mostraba o que os historiadores agora chaman o homúnculo, fíxose icónica da teoría preformacionista, e aparece en case todos os libros sobre a historia da ciencia embriolóxica.