Archival photograph of Tadao Endō (1913-1997) adding dispersant (neri) made of the beaten roots of the Hibiscus flower (tororoaoi) to vat in prepartion for papermaking, circa 1950s, photo likely taken by Nobumitsu Katakura. This gooey substance acts as a dispersant, which suspends the paper mulberry fibers throughout the vat evenly