An application for a bill of particulars under G. S., 1-150, formerly C. S., 534, “is addressed to the sound discretion of the trial court, and his ruling thereon, made in the exercise of such discretion, is not reviewable on appeal, except perhaps in extreme cases.” Tickle v. Hobgood, 212 N. C., 762, 194 S. E., 461. "While appellants concede this principle of law, they contend that this ease comes within the exception. However, the argument advanced, in the light of the allegations in the complaint and the exhibit attached thereto, fails in persuasiveness. Hence, the ruling of the court below is

Affirmed.