. Botany for agricultural students . Botany. Fig. 469. — Quetelet's law of continuous or fluctuating variability, demon- strated by arranging 82 ears of Corn in piles according to size. The ears were taken from unselected material from a field of Corn. The length and number of ears in each pile are given in figures below. Notice that the piles decrease each way from the pile (highest pile) containing the ears of average length, decreasing accordingly as the length of ears in each pile is greater or less than the average length. After Blakeslee. /^/^(^/^/^ /-\ (^ ^ g. y 1^ Fig. 470. — A demonst
. Botany for agricultural students . Botany. Fig. 469. — Quetelet's law of continuous or fluctuating variability, demon- strated by arranging 82 ears of Corn in piles according to size. The ears were taken from unselected material from a field of Corn. The length and number of ears in each pile are given in figures below. Notice that the piles decrease each way from the pile (highest pile) containing the ears of average length, decreasing accordingly as the length of ears in each pile is greater or less than the average length. After Blakeslee. /^/^(^/^/^ /-\ (^ ^ g. y 1^ Fig. 470. — A demonstration of Quetelet's law of continuous variation in the size of the seeds of a Common Bean. The seeds are grouped with refer- ence to length. The longest column contains those of average length and the columns to the right or left of it are shorter accordingly as the length of Beans in each column are greater or less than the average length. Redrawn from De Vries. space than the larger ones. All kinds of continuous variations, such as number of flowers per plant, number of seeds per pod, weight of seeds, height of plant, size and shape of leaves, etc., distribute themselves around an average in the same general way as illustrated by size in case of Beans and ears of 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
