76.45 grains. Therefore 100 of these capsules would have weighed 59.26
grains.

The ten tallest self-fertilised plants produced only 44 capsules,
weighing 22.35 grains. Therefore 100 of these capsules would have
weighed 50.79 grains.

From these data we get the following ratios for the fertility of the
three lots, as deduced from the relative weights of an equal number of
capsules from the finest plants in each lot:--

Westerham-crossed plants to self-fertilised plants as 100 to 46.

Westerham-crossed plants to intercrossed plants as 100 to 54.

Intercrossed plants to self-fertilised plants as 100 to 86.

We here see how potent the influence of a cross with pollen from a fresh
stock has been on the fertility of plants self-fertilised for four
generations, in comparison with plants of the old stock when either
intercrossed or self-fertilised for five generations; the flowers on all
these plants having been left to be freely crossed by insects or to
fertilise themselves. The Westerham-crossed plants were also much taller
and heavier plants than the self-fertilised, both in the pots and open
ground; but they were less tall and heavy than the intercrossed plants.
This latter result, however, would almost certainly have been reversed,
if the plants had been allowed to grow for another month, as the
Westerham-crossed were still growing vigorously, whilst the intercrossed
had almost ceased to grow. This case reminds us of the somewhat
analogous one of Eschscholtzia, in which plants raised from a cross with