Logo: a Positivist train

Question SA-4. Here is the text reference (p. 144/1):

In the world of culture, still dominated by the elites, Positivism was associated with Realism and Naturalism. These replaced the emotional and dramatic excesses of Romanticism, and the quaint country ways of "Costumbrismo", which to the elites seemed to be hopelessly old-fashioned and detrimental to the scientific and technological progress offered by Positivism. Popular and folk art, as one might imagine, were looked on with disdain by the Positivists, who saw them as the product of inferior, or at least backward, ethnical groups.