Societas Rosicruciana in Anglia | Societas Rosicruciana | Societas Perfecta | Societas Linguistica Europaea |
Interest in the discipline rapidly expanded, and in 1922 August Thienemann (a German zoologist) and Einar Naumann (a Swedish botanist) co-founded the International Society of Limnology (SIL, for originally Societas Internationalis Limnologiae).