title: An investigation of errors in direct counts of aquatic bacteria by epifluorescence microscopy, with reference to a new method for dyeing membrane filters.
mesh_terms: D000166:Acridines; D001419:Bacteria / Q000302:isolation & purification*; D001431:Bacteriological Techniques; D002452:Cell Count; D005069:Evaluation Studies as Topic; D005618:Fresh Water; D008851:Micropore Filters; D008856:Microscopy, Fluorescence; D013194:Staining and Labeling; D014871:Water Microbiology
chemical_list: D000166:Acridines