Mast, Samuel Ottmar, 1871- · New York, J. Wiley · leaf 94
at only a slight angle with the first, apparentlytrying to get around the obstacle in this wa>. The char-acter of the response did not change after the first pseudopodcame in contact with the light, or after the second and thethird came in contact with it. But after the fourth became…
Light -- Physiological effect · Phototropism
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