Agnes was like someone looking at a huge picture down a tiny little tube.

It was like looking into a tiny, infinite tube, lit from the very bottom.

A tiny tube of air seemed to go down from its prow.

Each dot is made of many tiny tubes - much too small to see without a microscope.

No one had seen the tiny tube do its work.

Now, he said, blood is drawn from all patients using the tiny tubes once used only for babies.

He found the switch and turned off the tiny tubes.

Sandra held up the tiny tube she had taken from the plastic container.

It was in the shape of a tiny tube.

The box can be used long after the tiny tubes are gone.