The Northumberland and Durham miners will connect their various branches, and will, if necessary, enter into relations with the Unions of other mining districts.

The local Unions of engineers, of carpenters, &c., are related closely by means of elected representatives in national Unions.

In the strongest Unions the central control is absolute in reference to the more important objects of union, the pressure for higher wages, shorter hours, and other industrial advantages, or the resistance of attempts to impose reductions of wages, &c.
3.

Along with the movement towards a national organization of the workers in a trade, or in some cases prior to it, is the growth of combined action between allied industries, that is to say, trades which are closely related in work and interests.

In the building trades, for example, bricklayers, masons, carpenters, plasterers, plumbers, painters and decorators, find that their respective trade interests meet, and are interwoven at a score of different points.