Page:Life in a thousand worlds.djvu/191

 each home is numbered in such a way that no two houses have the same designation. By this arrangement the delivery of goods is facilitated.

Everything in this busy metropolis goes like clock work, and everybody knows the schedule, which is simple enough to be understood almost at a glance.

All the trade centers lie along the freight and passenger railroad. This saves a tremendous amount of labor, for the goods are all transferred directly from the cars to the store-houses.

There is no Fire Department, for there is no need of one. It appears that only a few worlds in the universe use inflammable materials for structural purposes, and we are one of them.

There is a Finance Department and a Law Department, although I cannot give space for their description.

The Sanitary and Police Departments are under systems absolutely different from any that are known in our world. Their sanitary methods are no more effective than ours, perhaps less so. But the Police Department