[Johana Filipa Neumanna]

Johann Philipp Neumann's work is put into the limelight. He was the very first professor of physics with chemistry, who was not previously a Jesuit. The textbooks for chemistry which Neumann used for his lectures in Ljubljana are discussed. The paragraphs about chemistry of his own textbook published soon after he left Ljubljana for Graz Lyceum are analyzed. The chemical ideas in his paper on measurement of heat and temperature published a decade later are presented. The archival documents of Neumann's work in Ljubljana are published for the first time.