Inscription on flyleaf: "I / Journal of / Dr. L.H. Baekeland / Yonkers, NY [sic] / April 3, 1907 / to Jan. 23, 1908." The diary details Baekeland's daily activities. He writes often of his visits and discussions, and the subjects of correspondence he has written and received. It sheds light on the use and distance of travel by automobile in the early twentieth century. In the notes, Baekeland explains increasing time spent in the laboratory at the end of 1907 into 1908.
Leo H. Baekeland Papers, 1863-1968, Archives Center, National Museum of American History, Smithsonian Institution