Again, and again they appeared, at irregular intervals for fifty thousand years.

At irregular intervals, a dim red glow lit the grey from within.

At irregular intervals the bench was heaped with disorderly piles of luggage.

The sound was repeated at irregular intervals through an unbearably long morning.

She read the small newspaper that her master received at irregular intervals.

At irregular intervals small, involuntary contractions of pain twitched at his mouth.

Sounds still came from the bedroom at irregular intervals, horrible to hear.

But, owing to his vows, his visits fell at most irregular intervals.

There were four of these ledges altogether, at quite irregular intervals.

In other cases the chills, fever and sweating are repeated at irregular intervals.

Like the rest of the foregoing, he resigned and resumed at irregular intervals.

Rows of constables were backed against the walls at irregular intervals.

They get dribs and drabs of the funding at irregular intervals.

They now came at irregular intervals, and there were not many of them.

At short irregular intervals the hell-broth in the hole seemed as if boiling up.

From some place in the back, puffs of steam shot out at irregular intervals.