Dmitri Ivanovich Mendeleev in his study at home in 1904.
Courtesy Edgar Fahs Smith Collection, Kislak Center for Special Collections, Rare Books and Manuscripts, University of Pennsylvania.
Dmitri Ivanovich Mendeleev in his study at home in 1904.
Courtesy Edgar Fahs Smith Collection, Kislak Center for Special Collections, Rare Books and Manuscripts, University of Pennsylvania.