19, and the fifteen
self-fertilised plants 17.57 inches in height; or as 100 to 87. Mr.
Galton made a graphical representation, in accordance with the method
described in the introductory chapter, of the above measurements, and
adds the words "very good" to the curves thus formed.
Shortly afterwards one of the crossed plants in Pot 1 died; another
became much diseased and stunted; and the third never grew to its full
height. They seemed to have been all injured, probably by some larva
gnawing their roots. Therefore all the plants on both sides of this pot
were rejected in the subsequent measurements. When the plants were fully
grown they were again measured to the tips of the highest leaves, and
the eleven crossed plants now averaged 68.1, and the eleven
self-fertilised plants 62.34 inches in height; or as 100 to 91. In all
four pots a crossed plant flowered before any one of the
self-fertilised; but three of the plants did not flower at all. Those
that flowered were also measured to the summits of the male flowers: the
ten crossed plants averaged 66.51, and the nine self-fertilised plants
61.59 inches in height; or as 100 to 93.
A large number of the same crossed and self-fertilised seeds were sown
in the middle of the summer in the open ground in two long rows. Very
much fewer of the self-fertilised than of the crossed plants produced
flowers; but those that did flower, flowered almost simultaneously.
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