CHEMICAL Hofmann AG in 1846 opened in London school of chemistry. August Wilhelm von Hofmann (1818-1892); German chemist; was a student of Justus von Liebig University of Giessen; in 1845 he was appointed director of the school of practical chemistry in London. His studies involved extensively organic chemistry; and was the first to use molecular models in the lessons. Chromos; Liebig figurine series "Chemical famous"; n. 6; Italy 1929