Books by Gregorio, Mario A. Di 1 books by this author Found Matches | Filtered / Gregorio, Ernst Haeckel and the Unity of Culture, 2019. Gregorio, Mario A. Di: Ernst Haeckel and the Unity of Culture. In: Antennae: The Journal of Nature in Visual Culture 49/making nature (2019). Internet: https://www.dropbox.com/s/trot2muuwmdvahp/ANTENNAE%20ISSUE%2049.pdf?dl=1. S. 164–179.