Mast, Samuel Ottmar, 1871- · New York, J. Wiley · leaf 92
s onthe illuminated side. I could, however, never be quitecertain that it did, although it often appeared so. Thedifficulty in observation here lies in the fact that withoutany change of illumination the pseudopods form, extend avarying distance, then stop and retract while others formelsewhere.… … Fig. 8. Camera drawing representing diflferent stages in the process of orien-tation of Amoeba proteus. i, Amoeba oriented in light nn before light //is turnedon; 2-9 successive positions at the time indicateri on each after Hght // is turned on.Arrows represent the direction of streaming of…
Light -- Physiological effect · Phototropism
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