Certain yeasts exercise a reducing action, forming sulphuretted hydrogen, when sulphur is present.
Each problem was something unique; the elements of transition from one to another were wanting; and the next step which mathematics had to make was to find some method of reducing, for instance, all curves to a common notation.
The elections were controlled for a few years, and violence was checked, but the Ku Klux movement went on until it accomplished its object by giving protection to the whites, reducing the blacks to order, replacing the whites in control of society and state, expelling the worst of the carpet-baggers and scalawags, and nullifying those laws of Congress which had resulted in placing the Southern whites under the control of a party composed principally of ex-slaves.
This large influx of Europeans, however, is modifying the population by reducing the Indian and mestizo elements to a minority, although they are still numerous in the mesopotamian, northern and north-western provinces.
In 168 B.C. Antiochus Epiphanes captured Jerusalem, destroyed the walls, and devastated the Temple, reducing the city to a worse position than it had occupied since the time of the captivity.