References in classic literature ?
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.
Half a Martian year, about three hundred and forty-four of our days, each of these men spend alone in this huge, isolated plant.
A great backflood directly took place from the center to the sides of the room, so that D'Artagnan found himself isolated and dominator.
The soil of all the former states has the appearance of an alluvial deposit; and isolated rocks have been found, of a nature and in situations which render it difficult to refute the opinion that they have been transferred to their present beds by floating ice.
It cannot be doubted that if there were land-birds to pick up the seeds when first cast on shore, and a soil better adapted for their growth than the loose blocks of coral, that the most isolated of the lagoon-islands would in time possess a far more abundant Flora than they now have.
Patches of bush and isolated trees here and there smoked and glowed still, and the houses towards Woking station were sending up spires of flame into the stillness of the evening air.
Naturally not of a sweet temper, his isolated position in the house had soured him, and he rashly attempted to vent his ill-humor on me, as a newcomer.
This northern hemisphere presented vast plains, dotted with isolated mountains.
Chamonix's affairs stood still; everybody was in the street, all interest was centered upon what was going on upon that lofty and isolated stage five miles away.
The plains were diversified by isolated hills, all cut off, as it were, about the same height, so as to have tabular summits.
At one part of the river, they passed, on the northern side, an isolated rock, about one hundred and fifty feet high, rising from a low marshy soil, and totally disconnected with the adjacent mountains.
You quote an isolated sentence from my lecture, and appear to have some difficulty in understanding it.