Conrad could see how they struck them under the rims of their hats; the blows on their Skulls sounded as if they had fallen on stone; the rioters ran in all directions.
"A Hazard of New Fortunes, Part Fifth"
William Dean Howells
Peaks rose where never were peaks before, and rounded, smooth Skulls of mountains showed against the sky where sharp peaks should have been.
"The Shepherd of the North"
Richard Aumerle Maher
They had singled each other out, being evidently champions of their respective parties, and it was wonderful to observe the dexterity with which they assaulted each other, and defended their heads from blows, which, if delivered as intended, would have crushed their Skulls or broken their arms or legs.
"Paddy Finn"
W. H. G. Kingston