The Miriam and Ira D. Wallach Division of Art, Prints and Photographs: Art & Architecture Collection, The New York Public Library. "Design based on flowers; design based on leaves" The New York Public Library Digital Collections. 1880 - 1920. https://digitalcollections.nypl.org/items/510d47e2-c14b-a3d9-e040-e00a18064a99