In a confined or isolated area, if not very large, the organic and inorganic conditions of life will generally be in a great degree uniform; so that natural selection will tend to modify all the individuals of a varying species throughout the area in the same manner in relation to the same conditions.
If we turn to nature to test the truth of these remarks, and look at any small isolated area, such as an oceanic island, although the total number of the species inhabiting it, will be found to be small, as we shall see in our chapter on geographical distribution; yet of these species a very large proportion are endemic,--that is, have been produced there, and nowhere else.
Throughout a great and open area, not only will there be a better chance of favourable variations arising from the large number of individuals of the same species there supported, but the conditions of life are infinitely complex from the large number of already existing species; and if some of these many species become modified and improved, others will have to be improved in a corresponding degree or they will be exterminated.
He found the box with the tinder in it; but just as he was kindling a light, and had struck a spark out of the tinder-box, the door burst open, and the dog with eyes as large as saucers, which he had seen down in the tree, stood before him and said:
When she saw them disappear into a large house, she thought to herself: 'Now I know where it is; 'and made a great cross on the door with a piece of chalk.
And lo, and behold I there stood all three dogs--the one with eyes as large as saucers, the second with eyes as large as mill-wheels, and the third with eyes each as large as the Round Tower of Copenhagen.
The forest abounded with beautiful objects; among which the tree ferns, though not large, were, from their bright green foliage, and the elegant curvature of their fronds, most worthy of admiration.
He was dressed in a tattered old shirt and trousers, and had his head uncovered: he carried an old-fashioned gun and a large knife.
The air was delightfully cool and fragrant; and the drops of dew still glittered on the leaves of the large liliaceous plants, which shaded the streamlets of clear water.
The only things in the kitchen that did not sneeze, were the cook, and a large cat which was sitting on the hearth and grinning from ear to ear.
`Oh, there goes his PRECIOUS nose'; as an unusually large saucepan flew close by it, and very nearly carried it off.
One was large and bright and polished and unused, and was called the Vicar; and the other, which was much smaller and had evidently passed through many fires, was called the Curate.
She took from the top of the harmonium the large Bible and the prayer-book from which the Vicar was accustomed to read prayers, and put them on Philip's chair.
'Have you looked behind the large cask?' said one of the others.
The bridegroom arrived and also a large company of guests, for the miller had taken care to invite all his friends and relations.