mpared with plants of
the fifth intercrossed generation, grown in open ground, in weight:
.. : .. : .. : .. : 146.
Petunia violacea--offspring of plants self-fertilised for four
generations and then crossed by a fresh stock, compared with plants of
the fifth intercrossed generation, grown in open ground, in fertility:
.. : .. : .. : .. : 54.
Nicotiana tabacum--offspring of plants self-fertilised for three
generations and then crossed by a slightly different variety, compared
with plants of the fourth self-fertilised generation, grown not much
crowded in pots, in height:
26 : 63.29 : 26 : 41.67 : 66.
Nicotiana tabacum--offspring of plants self-fertilised for three
generations and then crossed by a slightly different variety, compared
with plants of the fourth self-fertilised generation, grown much crowded
in pots, in height:
12 : 31.53 : 12 : 17.21 : 54.
Nicotiana tabacum--offspring of plants self-fertilised for three
generations and then crossed by a slightly different variety, compared
with plants of the fourth self-fertilised generation, grown much crowded
in pots, in weight:
.. : .. : .. : .. : 37.
Nicotiana tabacum--offspring of plants self-fertilised for three
generations and then crossed by a slightly different variety, compared
with plants of the fourth self-fertilised generation, grown in open
ground, in height:
20 : 48.74 : 20 : 35.20 : 72.
Nicotiana tabacum--offspring of plants self-fertilised for three
generations and then crossed by a slightly different variety, compared
with plants of the fourth self-fertilised generation, grown in open
ground, in weight:
.. : .. : .. : .. : 63.
Anagallis collina--offspring from a red variety crossed by a blue
variety, compared with the self-fertilised offspring of the red variety:
3 : 27.62 : 3 : 18.21 : 66.
Anagallis collina--offspring from a red variety crossed by a blue
variety, compared with the self-fertilised offspring of the red variety,
in fertility:
.. : .. : .. : .. : 6.
Primula veris--offspring from long-styled plants of the third
illegitimate generation, crossed by a fresh stock, compared with plants
of the fourth illegitimate and self-fertilised generation:
8 : 7.03 : 8 : 3.21 : 46.
Primula veris--offspring from long-styled plants of the third
illegitimate generation, crossed by a fresh stock, compared with plants
of the fourth illegitimate and self-fertilised generation, in fertility:
.. : .. : .. : .. : 5.
Primula veris--offspring from long-styled plants of the third
illegitimate generation, crossed by a fresh stock, compared with plants
of the fourth illegitimate and self-fertilised generation, in fertility
in following year:
.. : .. : .. : .. : 3.5.
Primula veris--(equal-styled, red-flowered variety)--offspring from
plants self-fertilised for two generations and then crossed by a
different variety, compared with plants of the third self-fertilised
generation:
3 : 8.66 : 3 : 7.33 : 85.
Primula veris--(equal-styled, red-flowered variety)--offspring from
plants self-fertilised for two generations and then crossed by a
different variety, compared with plants of the third self-fertilised
generation, in fertility:
.. : .. : .. : .. : 11.
In these three tables the measurements of fifty-seven species, belonging to fifty-two genera and to thirty great natural families, are given. The species are natives of various parts of the world. The number of crossed plants, including those derived from a cross between plants of the same stock and of two different stocks, amounts to 1,101; and the number of self-fertilised plants (including a few in Table 7/C derived from a cross between plants of the same old stock) is 1,076. Their growth was observed from the germination of the seeds to maturity; and most of them were measured twice and some thrice. The various precautions taken to prevent either lot being unduly favoured, have been described in the introductory chapter.