The interval of time between consecutive doublings of the lines in the spectrum thus furnishes half the time of a revolution in the orbit.
"A Text-Book of Astronomy"
George C. Comstock
In the tortured doublings of his harassed mind he appeared to have spent almost a lifetime since the sun last rose.
"St. Patrick's Eve"
Charles James Lever
White Connal did not disturb himself at all to follow her doublings: his pleasure was not in the chase-he was sure the game was his own.
"Tales & Novels, Vol. IX [Contents: Harrington; Thoughts on Bores; Ormond]"
Maria Edgeworth