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.