This project began in the late 1980's as a means to supplement (or in some cases to largely replace ) the conventional textbook treatments of various topics in courses in General Chemistry and Environ...This project began in the late 1980's as a means to supplement (or in some cases to largely replace ) the conventional textbook treatments of various topics in courses in General Chemistry and Environmental Chemistry. The purpose was in most cases to provide alternatives to what seemed to be the rather shallow standardized treatments of certain topics presented in many commercial textbooks.