Hering’s main professional interaction with Morgan was when they both worked at the California Institute of Technology (Caltech) in Pasadena, USA, from 1996 to 2000. Looking back, she remarks: “Jim was always very generous with his time and supportive of his younger colleagues. I benefited from him as a mentor. He was at heart an educator.” In 1970, the textbook Aquatic Chemistry was published, which Morgan co-authored with Werner Stumm, who was director of Eawag from 1970 to 1992. The book became a widely cited standard work and was mentioned when Morgan and Stumm were awarded the Stockholm Water Prize in 1999.
Morgan completed his doctorate in wastewater treatment with Werner Stumm at Harvard University in the 1960s. The two stayed in touch when Stumm moved to Eawag in 1970. “The first time I met Jim was at Eawag, when we both took part in a workshop on aquatic chemical kinetics in 1989. I was a postdoc with Werner Stumm at the time,” recalls Hering. The friendship between Stumm and Morgan also left its mark on Eawag.