Schmidt & Haensch Compound Microscope (circa 1879)


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Bursaria (Protozoa) Movies

Bursaria Video No. 1 - Cilia lining the mouth opening of a bursaria can be seen sweeping and sifting for particles of food; under darkfield illumination at a magnification of 100x with a playing time of 11.6 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (2.60 MB).

Bursaria Video No. 2 - A dorsal (top) view of a translucent bursaria with its large mouth opening and food vacuoles easily discernible; under darkfield illumination at a magnification of 100x with a playing time of 13.9 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (2.12 MB).

Bursaria Video No. 3 - A ventral (underside) view of a tumbling bursaria, cilia lining its mouth opening sweep and sift for particles of food; under darkfield illumination at a magnification of 100x with a playing time of 97.0 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (21.8 MB).

Bursaria Video No. 4 - A bursaria propels itself through pondwater; under oblique illumination at a magnification of 100x with a playing time of 28.8 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (8.06 MB).

Bursaria Video No. 5 - The motion of its surface cilia is barely detectable as this bursaria slowly glides through the water; under oblique illumination at a magnification of 100x with a playing time of 25.5 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (7.95 MB).

Bursaria Video No. 6 - A close-up view of a bursaria and its tiny beating cilia, barely noticeable, covering the surface of the organism; under phase contrast illumination at a magnification of 200x with a playing time of 30.5 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (13.2 MB).

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