The use of oblique illumination in microscopic observations of living protozoa.
D000656:Amoeba; D000818:Animals; D016798:Ciliophora; D056890:Eukaryota / Q000166:cytology*; D008027:Light; D008722:Methods; D008853:Microscopy; D010247:Paramecium; D010784:Photomicrography; D013768:Tetrahymena