The staining of bacterial capsules and slime with ferric compounds.
D001419:Bacteria; D016667:Bacterial Capsules; D004396:Coloring Agents; D005290:Ferric Compounds; D007501:Iron; D013194:Staining and Labeling
D004396:Coloring Agents; D005290:Ferric Compounds; D007501:Iron
BACTERIA; IRON; STAINS AND STAINING