It had a special covering of fitted armor, thin but strong, shut up like a clamshell.
But sech is his awe of Enright, he never dar's opens his clamshell.
The co-pilot closed the clamshell doors, and it became possible to hear oneself think again.
He was eyeing the clamshell and looking more and more uneasy.
And so Ab slid down the tree, clamshell in hand, and began laboring vigorously at the spot agreed upon.
So he hunted a clamshell, a double one, Tish requested, and brought it into camp.
After a moment he mechanically spat on a clamshell and requested Davy to "sic" it.
He had no better implement with which to intrench himself in the land than a clamshell.
Maybe she struck the water and scaled along like a clamshell.
It was not a difficult task for a strong boy to cut through tough grass roots with the keen edge of the clamshell.