Ricketts' lab on Cannery Row had attracted visitors who ran the gamut from writers, artists and musicians to prostitutes and bums. Gatherings often included discussions of philosophy, science and art, and sometimes developed into parties that continued for days. Participants in meetings had included Steinbeck, Bruce Ariss, Joseph Campbell (who had worked at the lab as Ricketts' assistant), Adelle Davis, Henry Miller, Lincoln Steffens and Francis Whitaker. Amidst the tumult of commercial activity and tourist attractions that Cannery Row has become in recent decades, the modest and mostly unnoticed and unmarked lab stands as a silent witness to the bygone era celebrated in Steinbeck's work.