Function and Applications

4540 Our Environment Part II. Water Pollution. Problems and Results. - 20 Microscope Slides - 1. Intestinal bacteria (Escherichia coli) from putrid water 2. Putrefactive bacteria (Spirillum) from sludge poor in oxygen 3. Putrefactive bacteria (Sphaerotilus) bacteria, forming long chains 4. Sludge bacteria (Methanobacterium) causing sewer gas 5. Sulphur bacteria (Thiocystis) 6. Wasserbluthe (Microcystis), blue-green alga "blooming" in stagnant water 7. Anabaena, blue green algae, in eutrophic water 8. Spirogyra, filamentous green alga in nutrient-rich water 9. Spirulina, corkscrew-shaped algae occurring in bitter seas 10. Chlamydomonas, one-celled green alga in eutrophic water 11. Cladophora, green alga from moderately polluted water 12. Diatoms, mixed algae from scarcely polluted water 13. Euglena, green flagellates occurring in stagnant eutrophic water 14. Ciliates, different species from nutrient-rich water 15. Rotifers (Rotatoria), small animals from putrid water 16. Tubifex, fresh water oligochaete, living in the sludge 17. Carchesium, stalked ciliate from moderately polluted water 18. Water mold (Saprolegnia), harmful to plants and animals 19. Skin of fish injured by chemicals, t.s. 20. Skin ulcer of an amphibian, t.s.