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that by the middle of the century, melting snow will cause streams to reach their annual peak flow up to a month earlier.

and his elder children drawing substantial wages father is seldom the dominant figure that he still was at the beginning of the century.

It's therefore easy to grow skeptical about the prospects for an interstellar mission that could be launched this century.

It was thus that, at the beginning of the century, ancient society cleansed its double bottom, and performed the toilet of its sewer.

Some economists say, by the middle of this century, China's economic output could match or possibly exceed that of the United States.

Was not until the beginning of the century that man began to realize that it was the brain not the heart that was the center of mind.

Ever since the beginning of this century, too much natural resources have been used.

There can be no doubt that the growth in advertisement is one of the most striking features of the western world in this century.

The film industry in America actually started up in New York at the beginning of this century, but it fairly quickly moved to Hollywood.