"Grant did the coolest thing you ever saw.
"The Crisis, Volume 6"
Winston Churchill
He was the coolest hand I ever came across.
"The Beautiful Wretch; The Pupil of Aurelius; and The Four Macnicols"
William Black
When at pasture they select the coolest places in the shade of trees, in water, etc.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler