288 CREATION BY LAW. 
the foliage can be modified into various forms and 
modes of growth, the root, flower, and fruit remain- 
ing little altered; in the cauliflower and brocoli the 
flower heads vary; in the garden pea the pod only 
changes. We get innumerable forms of fruit in the 
apple and pear, while the leaves and flowers remain 
undistinguishable; the same occurs in the gooseberry 
and garden currant. Directly however, (in the very 
same genus) we want the flower to vary in the Ribes 
sanguineum, it does so, although mere cultivation 
for hundreds of years has not produced marked dif- 
ferences in the flowers of Ribes grossularia. When 
fashion demands any particular change in the form 
or size, or colour of a flower, sufficient variation 
always occurs in the right direction, as is shown by 
our roses, auriculas, and geraniums; when, as re- 
cently, ornamental leaves come into fashion sufficient 
variation is found to meet the demand, and we have 
zoned pelargoniums, and variegated ivy, and it is 
.discovered that a host of our commonest shrubs and 
herbaceous plants have taken to vary in this direction 
just when we want them to do so! This rapid varia- 
tion is not confined to old and well-known plants 
subjected for a long series of generations to culti- 
vation, but the Sikim Rhododendrons, the Fuchsias, 
and Calceclarias from the Andes, and the Pelargoniums 
from the Cape are equally accommodating, and vary 
just when and where and how we require them. 
Turning to animals we find equally striking exam- 
ples. If we want any special quality in any animal 
