Salamander: Originally a reptile inhabiting fire; later, an anthropomorphous immortal, but still a pyrophile. Salamanders are now believed to be extinct, the last one of which we have an account having been seen in Carcassonne by the Abbe Belloc, who exorcised it with a bucket of holy water.
There is no room for the impurities of literature in an essay.... the essay must be pure--pure like water or pure like wine, but pure from dullness, deadness, and deposits of extraneous matter.