Emil Erlenmeyer (nonfiction)

[[|thumb|Richard August Carl Emil Erlenmeyer.]]Richard August Carl Emil Erlenmeyer, known in his own day and subsequently simply as Emil Erlenmeyer (28 June 1825 – 22 January 1909), was a German chemist known for contributing to the early development of the theory of structure, formulating the Erlenmeyer rule, and designing the Erlenmeyer flask, a type of chemical flask, which is named after him.