Eschscholtzia californica--productiveness of the same plants, as judged by the number of capsules produced, and the average number of seeds per capsule: 40.
Reseda odorata--crossed and self-fertilised plants, left uncovered and cross-fertilised by bees; produced capsules in number (about): 100.
Viola tricolor--crossed and self-fertilised plants, left uncovered and cross-fertilised by bees, produced capsules in number: 10.
Delphinium consolida--crossed and self-fertilised plants, left uncovered in the greenhouse, produced capsules in number: 56.
Viscaria oculata--crossed and self-fertilised plants, left uncovered in the greenhouse, produced capsules in number: 77.
Dianthus caryophyllus--plants spontaneously self-fertilised under a net; capsules on intercrossed and self-fertilised plants of the 3rd generation contained seeds in number: 125.
Dianthus caryophyllus--plants left uncovered and cross-fertilised by insects: offspring from plants self-fertilised for three generations and then crossed by an intercrossed plant of the same stock, compared with plants of the 4th self-fertilised generation, produced seeds by weight: 73.
Dianthus caryophyllus--plants left uncovered and cross-fertilised by insects: offspring from plants self-fertilised for three generations and then crossed by a fresh stock, compared with plants of the 4th self-fertilised generation, produced seeds by weight: 33.
Tropaeolum minus--crossed and self-fertilised plants, left uncovered in the greenhouse, produced seeds in number: 64.
Limnanthes douglasii--crossed and self-fertilised plants, left uncovered in the greenhouse, produced capsules in number (about): 100.
Lupinus luteus--crossed and self-fertilised plants of the 2nd generation, left uncovered in the greenhouse, produced seeds in number (judged from only a few pods): 88.
Phaseolus multiflorus--crossed and self-fertilised plants, left uncovered in the greenhouse, produced seeds in number (about): 100.
Lathyrus odoratus--crossed and self-fertilised plants of the 2nd generation, left uncovered in the greenhouse, but certainly self-fertilised, produced pods in number: 91.
Clarkia elegans--crossed and self-fertilised plants, left uncovered in the greenhouse, produced capsules in number: 60.
Nemophila insignis--crossed and self-fertilised plants, covered by a net and spontaneously self-fertilised in the greenhouse, produced capsules in number: 29.
Petunia violacea--left uncovered and cross-fertilised by insects: plants of the 5th intercrossed and self-fertilised generations produced seeds, as judged by the weight of an equal number of capsules: 86.
Petunia violacea--left uncovered as above: offspring of plants self-fertilised for four generations and then crossed by a fresh stock, compared with plants of the 5th self-fertilised generation, produced seeds, as judged by the weight of an equal number of capsules: 46.
Cyclamen persicum--crossed and self-fertilised plants, left uncovered in the greenhouse, produced capsules in number: 12.
Anagallis collina--crossed and self-fertilised plants, left uncovered in the greenhouse, produced capsules in number: 8.
Primula veris--left uncovered in open ground and cross-fertilised by insects: offspring from plants of the 3rd illegitimate generation crossed by a fresh stock, compared with plants of the 4th illegitimate and self-fertilised generation, produced capsules in number: 5.
Same plants in the following year: 3.5.
Primula veris--(equal-styled variety): left uncovered in open ground and cross-fertilised by insects: offspring from plants self-fertilised for two generations and then crossed by another variety, compared with plants of the 3rd self-fertilised generation, produced capsules in number: 15.
Primula veris--(equal-styled variety) same plants; average number of seeds per capsule: 71.
Primula veris--(equal-styled variety) productiveness of the same plants, as judged by the number of capsules produced and the average number of seeds per capsule: 11.
This table includes thirty-three cases relating to twenty-three species, and shows the degree of innate fertility of plants of crossed parentage in comparison with those of self-fertilised parentage; both lots being fertilised in the same manner.