1.   Instead, there was a series of concentric circles, surrounding a small black disk.

2.   The model constructed by Nairn resembles a series of concentric circles.

3.   The strata are now much folded and appear on the surface as a series of concentric circles.

4.   The targets are black men with superimposed concentric circles Declining to a solid, black bullseye.

5.   On a blackboard, he drew five concentric circles.

6.   The words run along each concentric circle and not across circles.

7.   These represent segments of small circles concentric about the pole of rotation with respect to which the diverging plates are moving.

8.   If they could be seen they would resemble the concentric circles spreading outwards when we throw pebbles into the middle of a still pond.

9.   Alternating sweet potatoes and apples, arrange the slices in the baking dishes in a single layer of concentric circles.