The Westerham-crossed plants in weight to the self-fertilised as 100 to
53.

The Westerham-crossed plants in height to the intercrossed as 100 to
104.

The Westerham-crossed plants in weight to the intercrossed as 100 to
146.

The intercrossed plants in height to the self-fertilised as 100 to 61.

The intercrossed plants in weight to the self-fertilised as 100 to 36.

Here the relative heights of the three lots are nearly the same (within
three or four per cent) as with the plants in the pots. In weight there
is a much greater difference: the Westerham-crossed exceed the
self-fertilised by much less than they did before; but the
self-fertilised plants in the pots had become slightly withered, as
before stated, and were in consequence unfairly light. The
Westerham-crossed plants are here inferior in weight to the intercrossed
plants in a much higher degree than in the pots; and this appeared due
to their being much less branched, owing to their having germinated in
greater numbers and consequently being much crowded. Their leaves were
of a brighter green than those of the intercrossed and self-fertilised
plants.

RELATIVE FERTILITY OF THE THREE LOTS OF PLANTS.

None of the plants in pots in the greenhouse ever produced a capsule;
and this may be attributed in chief part to the exclusion of moths.