The concentric circles must be to indicate the order of the letters.

Each year the secretions of the mollusc would add new concentric circles.

At several places in lowland valleys, there were dense red concentric circles.

For now, the targets are numbered, concentric circles on the target ranges.

Maybe you're the type of person who likes to make concentric circles.

I expanded the concentric circles with the tree base as my epicenter.

Retuning for an encore is the same dark lid featuring concentric circles.

The answer came through reflection on the relations of concentric circles.

I added spiral arms to the outermost of my concentric circles.

The emerging European structure can be imagined as a series of concentric circles.

Tess noticed strange concentric circles drawn neatly on each of them.

What seemed a miniature rainbow surrounded it, with concentric circles of blinding brilliance.

They formed around our devoted vessel a series of concentric circles.

Then he drew a number of concentric circles about his dot.

Santa Cruz is planned out in a series of concentric circles.

Here on Los Negros, the disquiet runs out in concentric circles.