for this reason – apart from a period he worked in Berlin, which did not lead to any publishing. For a long time Wahlforss did not publish anything, until in 1888 he presented the first part of series of studies, which handled castor oil oxidation products, enanthic acid in particular. Due to this, Wahlforss was appointed professor in the Polytechnical Institute. He published studies about the topic until his paralysis in 1896. Wahlforss's achievements were based on his persistent, thorough and detailed work, rather than great innovations. The former students remembered Wahlforss as a good lecturer, whose passion to the subject remained evident. While the lessons were often chaotic and without structure, the learning outcomes were good – Wahlforss explained complicated topics in small parts easy to embrace, and he often spiced the lessons with anecdotes. Personal life While Wahlforss gained a lot professionally during his time in St. Petersburg in 1868–1869, but he also increased his alcohol consumption while in the large metropolis. He married a local woman whose identity remains unknown, but returned alone to Finland. During the following years the alimony Wahlforss had to pay for the spouse and two children burdened his personal finances heavily. At latest in 1882 Wahlforss started a relationship with 19-year-old Emilia Elisabeth Långhjelm and in the following year they had a daughter, Elisabeth; another daughter, Henriette, followed in 1885. The marriage with the unknown Russian woman was possibly still in force, and this could be the reason why the couple lived for long together before marrying in 1890. After that they had two sons: Wilhelm in 1891 and Eric in 1895. Wahlforss suffered an infarct during cycling trip in midsummer 1896. He was taken home unconscious. Wahlforss spent the rest of his life partly paralysed and unable to walk and speak; he had also lost his memory. He died on 28 March 1899. Wahlforss's sons became later notable business people. Wilhelm became a large company director and Eric managed a paper mill. Sources References External links Finnish chemists 1839 births 1899 deaths