This set of prepared microscope slides shows a selection of various inhabitants of polluted waters.

Selected polluted water specimens are stained and carefully mounted on glass slides with cover slips. Each slide is labeled and conveniently arranged in a durable plastic case.

Pictured above: Uredinales, sec. Pictured right: Hydrodictyon, Spaerotilus, Wasserbluthe blooming in stagnant water (Photos taken with the Moticam 2500 digital microscope camera.)

1. Spirillum, bacteria from highly polluted water
2. Sphaerotilus bacteria forming long chains from putrid water
3. Wasserbluthe (Microcystis), blooming in stagnant water
4. Chlamydomonas, one-celled alga in euthrophic water
5. Sirogyra, filamentous alga in nutrient-rich water
6. Cladophora, green alga from moderately polluted water
7. Rotifers, small animals from clear water
8. Carcgesium, ciliate from moderately polluted water
9. Diatoms, mixed algae from scarcely polluted water
10. Water hyacinth,  plant from barely polluted water, rhizome
11. Nostoc, w.m.
12. Lactobacillus, w.m.
13. Uredinales, sec.
14. Ustilago maydis, sec.
15. Hydrodictyon, w.m.
16. Oscillatoria, w.m.

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c.s. – cross section    sec. – section
w.m. – whole mount    l.s. – longitudinal section