Search for: [Subject and Keywords = Microbiology] OR [Subject and Keywords = Lower plants] OR [Subject and Keywords = Protozoa \- historical review] OR [Subject and Keywords = Freshwater creatures \- description \- lower plants \- protozoa \- historical review] OR [Subject and Keywords = Mikrobiologia] OR [Subject and Keywords = Rośliny niższe] OR [Subject and Keywords = Pierwotniaki \- przegląd historyczny] OR [Subject and Keywords = Żyjątka słodkowodne \- opisy \- rośliny niższe \- pierwotniaki \- przegląd historyczny] OR [Title = Naturgeschichte der mikroskopischen süsswassewbewohner] OR [Creator = Eyferth, Oscar Bruno \(1826–1897\)]