. Attractions & oscillations des animaux marines sous l'influence de la lumière. Recherches nouvelles relatives au phototactisme et au phototropisme. Light -- Physiological effect. FiG. 20 à 28. 2' cas: La direction des rainures forme environ un angle de 45° avec la direction du champ lumineux. â F'réquemment les litto-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bohn, Georges, 1868-. Paris

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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherparis, bookyear1905