Behind Presso, the ballista crew broke into action.    From Wordnik.com.  [Immortalis]

He would not be impaled by ballista after ballista.    From Wordnik.com.  [Time Streams]

I paused at the place where the ballista had had its mishap.    From Wordnik.com.  [The Black Company]

Kang motioned his officers to follow and walked to the ballista.    From Wordnik.com.  [The Dragons of Krynn]

At a signal, four soldiers winched it into place on the ballista.    From Wordnik.com.  [Waylander]

Sorcor cursed his delight with this and ordered the ballista fired.    From Wordnik.com.  [Ship Of Magic]

Presso heard the ballista swiveling behind him, and he turned fiercely.    From Wordnik.com.  [Immortalis]

The only sound was the wood of the ballista creaking, and that was minor.    From Wordnik.com.  [The Dragons of Krynn]

The lizard men ordered the goblins to winch down the ballista and fire again.    From Wordnik.com.  [Riverwind the Plainsman]

The ship was down, there was no reason to shoot it with a big ballista-thing.    From Wordnik.com.  [MIND MELD: Which SciFi Movie Ending Would You Change?] Reference

The ballista crews hiding in the adjacent buildings closed their window shutters.    From Wordnik.com.  [The Veiled Dragon]

Here, too, was the construction area for the battle engines, such as the ballista.    From Wordnik.com.  [The Dragons at War]

The air was filled with all manner of shot: stones, arrows, and huge ballista bolts.    From Wordnik.com.  [The Brothers' War]

An officer raised an arm, a lever was swiftly pulled and the ballista arm shot forward.    From Wordnik.com.  [Waylander]

She inhaled sharply; shattered ribs and ballista-launched spears stabbed into her lungs.    From Wordnik.com.  [The Dragons at War]

I budgeted my time carefully and created three drawings of various catapults and ballista.    From Wordnik.com.  [Shaman's Crossing]

    The air was filled with all manner of shot: stones, arrows, and huge ballista bolts.    From Wordnik.com.  [The Brothers' War]

Inside the shed Pawn cranked the ballista back and dropped another javelin into its trough.    From Wordnik.com.  [Shadows Linger]

Wace, directing the ballista crew, which was stoning a nearby raft, understood only vaguely.    From Wordnik.com.  [The Earth Book of Stormgate]

Here were siege devourers, living engines of destruction, also equipped with ballista and cannon.    From Wordnik.com.  [Guild Wars: Ghosts of Ascalon] Reference

Numerous portals and battlements bristled along its flanks, set with catapults and small ballista.    From Wordnik.com.  [The Brothers' War]

Soon after the seige commenced, Josephus tells us, he was killed by a stone from a Roman ballista.    From Wordnik.com.  [Archive 2009-05-01] Reference

The engine here described by Procopius is the catapult of earlier times; the ballista hurled stones, not arrows.    From Wordnik.com.  [Procopius History of the Wars, Books V. and VI.] Reference

The forward ballista on the Rijstaffel, with a whine and a thump, had smacked a half-ton stone into the nearest canoe.    From Wordnik.com.  [The Earth Book of Stormgate]

No ballista, however, is made without regard to the given amount of weight of the stone which the engine is intended to throw.    From Wordnik.com.  [The Ten Books on Architecture] Reference

The ballista is 7.5 meters tall, it is 8.5 meters long and weighs 12 tons.    From Wordnik.com.  [The News is NowPublic.com - NowPublic.com: The News is Now Public] Reference

Armed Forces of the World: US military catapults / trebuchet / ballista etc.    From Wordnik.com.  [StrategyPage.com] Reference

The ballista weighs approx 12 tons so postage or even buyer collection is not an option.    From Wordnik.com.  [The Smallest Minority] Reference