We listened respectfully to the information that their temperature ranged from 112 to 128 degrees fahrenheit, and that they possessed valuable curative properties.
"Among the Canadian Alps"
Lawrence J. Burpee
As the caves have a mean temperature of fifty degrees fahrenheit they are comfortable enough, and, as they are fifty feet below the surface of the earth, they are safe.
"Italy at War and the Allies in the West"
E. Alexander Powell
The observations were made by a fahrenheit thermometer kept in the open air and in the shade, and noted at six in the morning, midday, and six in the afternoon.
"Incidents of Travel in Yucatan, Vol. I."
John L. Stephens