 In 1859, he joined the Century Association.Eidlitz wrote numerous articles published in such journals as "The Crayon" in the 1850s and the "American Architect and Building News" beginning in the 1870s.He published a major book "The Nature and Function of Art, More Especially of Architecture" (New York and London, 1881), which proposed an organic theory of architecture that wedded German notions of art and science to American transcendentalist concerns.