Mast, Samuel Ottmar, b.1871 · New York, J. Wiley & Sons; [etc., etc.] · leaf 109
e facedthe light during the preceding rotation. While in thisposition, the body is somewhat straightened, so that theanterior end is not carried back as far during the followingrotation, and when the dorsal surface comes to face thelight it is directed more nearly toward its source than it LIGHT… … ^ ^x- n FIG. 13- Euglena sp. (?) in crawling state, showing details in process of orien-tation; v, contractile vacuole; es, eye-spot; n, o, direction of light; a-c, positionsof Euglena with light from n intercepted; c-m, positions after light from n is turnedon and that from o cut off so as to…
Light -- Physiological effect · Phototropism
Internet Archive · Biodiversity Heritage Library · Public Domain Mark 1.0. Free to use for anything.
