29. Chap. 29.-Of Sudden Circles.

CHAP. 29.—OF SUDDEN CIRCLES.

A bow appeared round the sun in the consulship of L. Opimius and L. Fabius[1], and a circle in that of C. Porcius and M. Acilius. (30.) There was a little circle of a red colour in the consulship of L. Julius and P. Rutilius.

1. The term here employed is "arcus," which is a portion only of a circle or "orbis." But if we suppose that the sun was near the horizon, a portion only of the halo would be visible, or the condition of the atmosphere adapted for forming the halo might exist in one part only, so that a portion of the halo only would be obscured.