Current issue: 51(4)
Under compilation: 51(5)
The here published speech of Cajander presents the academic career of J. P. Norrlin as a researcher, teacher and influential person in the Finnish scientific society. It also sheds light on Norrlin’s person and thoughts. The highlights of his scientific merits are presented. There are many extracts of his correspondence included in the article that describe Norrlin’s thoughts and interest.