It had grown much too cold to do without some sort of artificial covering.

Artificial flies, like artificial flowers, never should follow nature.

As yet the use of machinery and artificial manure is almost unknown.

It is only the artificial and the complex that bewilder them.

I lead so artificial a life; but then I hope it is a useful one.

With them we think of the artificial as the archetype; the earth-born as the erratic exception.

They are commingled either in a natural or an artificial manner.

In our artificial social state this is indeed bound to be so.

These tests demonstrated the practicability of artificial flight.

This is the process of artificial selection as carried on by man.