There is a derivative relation between objects and spatial elements which I call the relation of location; and when this relation holds, I say that the object is located in the abstractive element.

In this sense, an object may be located in a moment of time, in a volume of space, an area, a line, or a point.

There will be a peculiar type of location corresponding to each type of situation; and location is in each case derivative from the corresponding relation of situation in a way which I will proceed to explain.
Also location in the timeless space of some time-system is a relation derivative from location in instantaneous spaces of the same time-system.

Accordingly location in an instantaneous space is the primary idea which we have to explain.

Great confusion has been occasioned in natural philosophy by the neglect to distinguish between the different types of objects, the different types of situation, the different types of location, and the difference between location and situation.