The impatient critic of evolutionary hypotheses is apt to forget the length of these early periods.

There was no general organization of these several elements, in the early periods of the modern cycle.

To the former class belong many incidents in the early periods of New England and its adjacent colonies.

During the early periods of Jackson's administration, Mr. Adams, though in retirement, was neither unobserving nor silent concerning its proceedings.

She attributes the frustration some editors feel to "a lack of understanding of the problems of people working on the early periods".

The Christ, too, must be accounted but as modernized Byzantine; here is none of the severity or of the tenuity of the early periods.

These data indicate that A2BP1 mutations may clinically affect very selective forebrain neuron types from early periods of development.

Of course this barbaric cruelty is common to all early periods in every nation; and, whenever fierce passion is aroused, to civilised nations also.

These immense masses of rock-salt seem to have been produced by the evaporation of sea-water in the early periods of the world by subterranean fires.

This was a common source of slavery in the early periods of Roman history, but in Cicero's day we cannot speak of it with confidence.

Early periods in Earth's history have seen a progressive increase in complexity of the ecosystems, but also dramatic crises decimating the biosphere.