. Elements of ecology. Ecology. 190 Light I II III IV V VIVIIVIIIIX X XI XII I II III IV V VI 80° N 60° N 40° N 20° N 20° S 40° S 60° S 80° S. Fig. Variation in length of day at the indicated latitudes during the indicated months. Arrowheads indicate periods of decreasing daylength. The heavy line shows the course of zenith sun (Baker, 1938.). 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 Clarke, George L. (George Le
. Elements of ecology. Ecology. 190 Light I II III IV V VIVIIVIIIIX X XI XII I II III IV V VI 80° N 60° N 40° N 20° N 20° S 40° S 60° S 80° S. Fig. Variation in length of day at the indicated latitudes during the indicated months. Arrowheads indicate periods of decreasing daylength. The heavy line shows the course of zenith sun (Baker, 1938.). 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 Clarke, George L. (George Leonard), 1905-. New York, Wiley
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Keywords: ., bookcentury1900, bookpublishernewyorkwiley, booksubjectecology
