At Mill Grove he came near losing his life, on a duck-shooting expedition, by falling through an air hole in the ice.
There will be areas of pure lead, with an air hole here and there.
If it burns back into the air hole, also turn off the gas and begin again.
The girls are through the ice—an air hole I guess—come on back!
He could wait for what he wished as the Eskimo sits for days at the air hole until the seal appears.
Epworth dropped down as silently as possible from the air hole.
Usually a cap is placed over the air hole while the gas is being ignited.
If the air hole should get uncovered there would be a tragedy!
Near the middle of the lake there was an air hole through which warm air rose to the surface, and there the ice was never thick.
One horse made for the shore, the other plunged into an air hole in the ice.