More recent study of Rand's posthumously published journal notes, as well as a close comparison of the respective careers of the real and fictional architects by Heynick, has explored this connection in some detail. Although Rand's journal notes contain "in toto" only some 50 lines directly referring to Sullivan, it is clear from her mention of Sullivan's "Autobiography of an Idea" (1924) in her 25th-anniversary introduction to her earlier novel "We the Living" (first published in 1936, and unrelated to architecture) that she was intimately familiar with his life and career. The term "the Fountainhead," which appears nowhere in Rand's novel proper, is found twice (as "the fountainhead" and later as "the fountain head") in Sullivan's autobiography, both times used metaphorically.