A Page 24 story in the May 27 issue misidentified Lawrence Umstadter. He is president of Project Consul-ants and Associates Inc. of Orlando, Fla. Umstadter never has worked for Mobil Corp., though as president of plastic lumber maker Rivenite, he oversaw the sale of that firm to Mobil.
Part of a quote from the Page 1, May 27 story ``Featherstone molds birds of play'' was deleted during the color separation proc-ess. The quote from Don Featherstone should have read: ``I came here and never left.''
In a Page 46 story in the May 6 issue, Chlorine Chemistry Council spokes-man William F. Carroll Jr. should have been credited with saying that chlorine is neither persistent nor a specific endocrine disrupter in the environment.