The clay rose up into a perfect cylinder as he treadled.

The logs were perfect cylinders cut from young trees, a degree of calculation that extended to everything in the house.

As they were peeling off, the canvas paintings rolled automatically into neat cylinders; perfect for storing.

The rear of the room, formerly the bathroom, holds towels, each set rolled into perfect cylinders.

Now the wall of gold moved outward from the pole, a nearly perfect cylinder that stood and pointed through the sky.

Almost at once a single ship, blunt, an almost perfect cylinder, lowered its screen.

There's a spare primer-thrust tube that will make a perfect cylinder.

The growing light showed that they occupied what appeared to be a perfect cylinder carved into the ice.

When he let go it snapped back to a perfect cylinder.

The bottle was a perfect cylinder of clear glass, which sparkled as it dried.