set on foot

Park rangers received a report of a suspected heatstroke Wednesday afternoon and set on foot to look for Stanback.

"What that means is that there's nothing to stop the schoolkids in Great Britain today from being amongst the first men and women to set on foot on Mars in the future."

As the transit of Venus of 1874 approached, preparations were set on foot by the German Government in good time; a commission of the most celebrated astronomers was appointed, and it was resolved that the heliometer should be the instrument chiefly relied on.

Macrinus, the successor and instigator of the murder of Caracalla, was very unpopular with the army; an insurrection was easily set on foot, and on the 16th of May 218 Varius was proclaimed emperor as Marcus Aurelius Antoninus.

Paint in glowing terms the visions you have of this thing when it has been set on foot.