The same forms and the same colours must come in in the same way in every yard, or every half or three-quarter yard of the carpet.
It follows, then, that it must be evenly sprinkled or it must regularly meander over every yard or half yard of the surface; and this regularity resolves itself into spots, and spots are unendurable in a scheme of colour.

So broad a space as the floor of a room cannot be covered by sections of constantly repeated design without producing a spotty effect, although it can be somewhat modified by the efforts of the good designer.

Nevertheless, in spite of his best knowledge and intention, the difficulty remains.

There is no one patch of colour larger than another, or more irregular in form.

There is nothing which has not its exact counterpart at an exact distance--north, south, east and west, or northeast, southeast, northwest and southwest--and this is why a carpet with good design and excellent colour becomes unbearable in a room of large size.