A New Life-Mask for Swimmers
"A German inventor has formulated the theory that many persons able to swim are drowned, when wrecked or accidentally thrown into the water, by being unable to keep the waves from dashing in their faces, and so gradually smothering them," says The American Inventor. "In order to overcome this danger, he has invented a life-mask which is to be worn with the life-preserver. It is provided with valves which check the entrance of the water, but which respond readily to suction so that the wearer may readily breathe."