[98]

Phalaris — Apogeotropism place 40° below Horizon

[data not transcribed] Used for notes

[98v]

88

Ipomoea

Here the average height of the three self-fertilised children of Hero is 88.91 inches, whilst that of the intercrossed plants is 84.16; or as 100 to 95. We thus see that the self-fertilised children of Hero certainly inherit the powers of growth of their parents; for they greatly exceeded in height the self-fertilised offspring of the other self-fertilised plants, of the same generation, and even exceeded by a trifle the intercrossed plants, all of the corresponding generation.

Several flowers on the self-fertilised children of Hero in Table 14, were fertilised with pollen from the same flower; and from the seeds thus produced self-fertilised plants of the eighth generation (grandchildren of Hero) were raised. Several other flowers on the same plants were crossed with pollen from the other children of Hero. The seedlings raised from this cross may be considered (if we look at all the flowers on the same plant as forming a single individual as the offspring of the union of brothers and sisters. The result of the competition between these