Benjamin, Marcus 1857-1932 creator mixed material monographic eng 100 1 Programs, invitations, newspaper clippings, biographical material, and a few letters received by Benjamin. Open to research. Editor, chemist, sanitary engineer, and lecturer. Collection material in English. Chemists Editors Lecturers Sanitary engineers mm 81012401 Open to research. DLC 810423 20260227111706.0 mm 81012401