Important piece in an arch

Usage examples of keystone.

Darwin and Wallace have each thrown invaluable light upon these last two points, but Buffon, as early as 1756, had made them the keystone of his system.

From assisting the carpenter in hewing the rafters, to advising the masons in laying a keystone, or with his own hands mixing the mortar and tamping the earth to give firm foundation to the cement floor, he was the directing spirit.

At the last second before it closed over our heads I glanced upwards to the wedge-shaped voussoirs and, above them, the keystone: LITTERA SCRIPTA MANET.

I closed my eyes and for an instant, half asleep, glimpsed rising before me the outline of Pontifex Hall framed in its monumental arch, the inscribed keystone above cast in shadow and maculated with moss and lichen, the words barely visible beneath.

But by a combination of a simple secret that has been kept securely, many years of practice, a certain amount of audience misdirection, and the use of conventional magic techniques it has become the keystone of my act and my career.

I think when you pulled the keystone out of the Tower in the overworld, you also seared the physical one on Darkover.

Charles Penstock and Ed Rivet went away from there to Silly Ghost Cove on Keystone Lake to jug for bullhead catfish.

Teddy the Keystone Dog unties Tom Oakheart, who gets on a handcar to make for the sawmill.

After breakfast Harry walks along Pindo Palm Boulevard and brings back a bag of groceries from Winn Dixie, passing up the Keystone Corn Chips and going heavy on the low-cal frozen dinners.

The one Clinger wanted was third, with a fine old stone arch over the entrance, the building number carved into the keystone of the arch, the whole thing looking like an ad for Pennsylvania.

He fingered it, the fleshy pad of his index finger finding the smooth gold metal of the Pennsylvania keystone, the back of the ballet slipper, the tiny hole of the minuscule thimble, and the spokes of the bicycle with wheels that worked.

As I recall those weeks, everything seems to have taken place at a frenzied pace, as in a Keystone Kops film, all jerks and jumps, with doors opening and closing at supersonic speed, cream pies flying, dashes up flights of steps, up and down, back and forth, old cars crashing, shelves collapsing in grocery stores amid avalanches of cans, bottles, soft cheeses, spurting siphons, exploding flour sacks.

You think De Groot read the finished TOE paper, and became the Keystone?

I began to encourage King Argaven to wait, to make no decision concerning you or your mission, about a halfmonth before the day of the Ceremony of the Keystone.

It was a simple stone arch, tall and white, and on the keystone was a circle halved by a sinuous line, one half rough, the other smooth.