" They were particoloured with extraordinary irregularity, smeared with a sort of plaster that was sometimes grey, sometimes drab, sometimes slate-coloured or dark brown; and it was the sight of this wild plastering first brought the word “blind” into the thoughts of the explorer. “The good man who did that,” he thought, “must have been as blind as a bat. "

― H.G. Wells , Delphi Collected Works of H. G. Wells (Illustrated)