The Effects of Cross & Self-Fertilisation in the Vegetable Kingdom - Charles Darwin

Mimulus luteus—offspring of plants self-fertilised for eight
generations and then crossed by a fresh stock, compared with plants of
the ninth self-fertilised generation:
28 : 21.62 : 19 : 10.44 : 52.

Mimulus luteus—offspring of plants self-fertilised for eight
generations and then crossed by a fresh stock, compared with plants of
the ninth self-fertilised generation, in fertility:
.. : .. : .. : .. : 3.

Mimulus luteus—offspring of plants self-fertilised for eight
generations and then crossed by a fresh stock, compared with the
offspring of a plant self-fertilised for eight generations, and then
intercrossed with another self-fertilised plant of the same generation:
28 : 21.62 : 27 : 12.20 : 56.

Brassica oleracea—offspring of plants self-fertilised for two
generations and then crossed by a fresh stock, compared with plants of
the third self-fertilised generation, by weight:
6 : : 6 : : 22.

Iberis umbellata—offspring from English variety crossed by slightly
different Algerine variety, compared with the self-fertilised offspring
of the English variety:
30 : 17.34 : 29 : 15.51 : 89.

Iberis umbellata—offspring from English variety crossed by slightly
different Algerine variety, compared with the self-fertilised offspring
of the English variety, in fertility:
.. : .. : .. : .. : 75.

Eschscholtzia californica—offspring of a Brazilian stock crossed by an
English stock, compared with plants of the Brazilian stock of the second
self-fertilised generation:
19 : 45.92 : 19 : 50.30 : 109.

Eschscholtzia californica—offspring of a Brazilian stock crossed by an
English stock, compared with plants of the Brazilian stock of the second
self-fertilised generation, in weight:
.. : .. : .. : .. : 118.