In his "Chirurgical Observations," Job van Meek'ren tells the story of a Russian nobleman who lost part of his skull, and a dog's skull was supplied in its place.

The bigoted divines of the country excommunicated the man, and would not annul his sentence until he submitted to have the bit of foreign bone removed.
Mendenhall reports the history of an injury to a laborer nineteen years old.

While sitting on a log a few feet from a comrade who was chopping wood, the axe glanced and, slipping from the woodman's grasp, struck him just above the ear, burying the "bit" of the axe in his skull.

Two hours afterward he was seen almost pulseless, and his clothing drenched with blood which was still oozing from the wound with mixed brain-substance and fragments of bone.

The cut was horizontal on a level with the orbit, 5 1/2 inches long externally, and, owing to the convex shape of the axe, a little less internally.