Identifying polluted water under the microscope. - 10 prepared slides in box

59-5860 Identifying polluted water under the microscope 59-5860/1 Spirillum, bacteria from highly polluted water 59-5860/2 Sphaerotilus, bacteria forming long chains with sheaths from putrid water 59-5860/3 Wasserbluthe (Microcystis), blue-green alga "blooming" in stagnant water 59-5860/4 Chlamydomonas, one-celled green alga in eutrophic water 59-5860/5 Spirogyra, filamentous green alga in nutrient-rich water 59-5860/6 Cladophora, green alga with branching filaments from moderately polluted water 59-5860/7 Rotifers (Rotatoria), small animals from clear water 59-5860/8 Carchesium, bell-shaped stalked ciliate from moderately polluted water 59-5860/9 Diatoms, mixed algae from scarcely polluted water 59-5860/10 Water hyacinth (Eichhornia), plant from barely polluted water, rhizome t. s.