Reactions to light in Planaria maculata with special reference to the function and structure of the eyes (1918)
Taliaferro, William Hay, 1895- · Baltimore · leaf 176
QC-- … c D iigure 17. Diagram representing the relation of the axis of photicstimulation to the axes of the various rhabdom-s when theeye is illuminated from different directions, The dia-grams are made from camera lucida drawings of sections.A and B, frontal sections of the eye; C and D,…