Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 41. Chapters: Gram-positive bacteria, Gram staining, Histology, Gram-negative bacteria, Immunohistochemistry, Phosphotungstic acid, Immunocytochemistry, Romanowsky stain, Silver stain, Golgi's method, Acid-fast, Papanicolaou stain, Trichrome, H&E stain, Giemsa stain, Negative stain, Periodic acid-Schiff stain, Masson's trichrome stain, Biological Stain Commission, Eosin methylene blue, Ziehl-Neelsen stain, Quellung reaction, Van Gieson's stain, Auramine-rhodamine stain, Diff-Quick, Feulgen stain, Biebrich scarlet, Schaeffer-Fulton stain, Vital stain, Warthin-Starry stain, Phosphotungstic acid-haematoxylin stain, Wright's stain, G banding, Gomori trichrome stain, Nigrosin, Heidenhain's AZAN trichrome stain, Von Kossa Stain, Field stain, PAS diastase, Cresyl violet stain, Sudan stain, Grocott's methenamine silver stain, HPS stain, Gimenez stain, Thionine, Mucicarmine stain, Dieterle stain, Leishman stain, Movat's stain, Luxol fast blue stain, HOPS stain, Counterstain, Bielschowsky stain, Argentaffin, Acid fuchsin, Chromophobe, Jenner's stain, GFAP stain, Reticulin stain, Alcian blue stain, Cyto-Stain, Auramine phenol stain, Lillie's trichrome, Jones' stain. Excerpt: Staining is an auxiliary technique used in microscopy to enhance contrast in the microscopic image. Stains and dyes are frequently used in biology and medicine to highlight structures in biological tissues for viewing, often with the aid of different microscopes. Stains may be used to define and examine bulk tissues (highlighting, for example, muscle fibers or connective tissue), cell populations (classifying different blood cells, for instance), or organelles within individual cells. In biochemistry it involves adding a class-specific (DNA, proteins, lipids, carbohydrates) dye to a substrate to qualify or quantify the presence of a specific compound. Staining and fluor...