Persons who explore these glaciers wear spiked shoes as a necessary precaution, and to aid them in creeping along the slippery, rubbled surface of the ice.
"Due North or Glimpses of Scandinavia and Russia"
Maturin M. Ballou
To prevent our being thrown about on the slippery surface, we cut holes into the pinnacles and spread lines about them, to which we clung.
"My Attainment of the Pole"
Frederick A. Cook
Wheeler dropped cautiously upon a slippery staging, across which the water flowed, and, crawling into the heading, with a blinking light in his eyes, fell into a sled that was loaded with broken rock.
"The Greater Power"
Harold Bindloss W. Herbert Dunton