title: Protozoa as precursors of metazoa: German cell theory and its critics at the turn of the century.
authors.forename: M L
authors.initials: ML
authors.lastname: Richmond
mesh_terms: D003585:Cell Biology / Q000266:history*; D005858:Germany; D049711:History, Modern 1601-; D008829:Microbiology / Q000266:history*