That exception is the HTML tag–which transcludes an image into the context of the document. The image itself is neither embedded within the document nor copied—it is transcluded.

A hideous account of a hanging, drawing, and quartering had first attracted him to it; but later he discovered the book (Curiosities of Literature was its name) full of the finest confused feeding—such as forgeries and hoaxes, Italian literary societies, religious and scholastic controversies of old when men (even that most dreary John Milton, of Lycidas) slanged each other, not without dust and heat, in scandalous pamphlets; personal peculiarities of the great; and a hundred other fascinating inutilities.

Don's a BAFC.

As for the guides, they were debarred from the pleasure of discourse, the one being placed in the van, and the other obliged to bring up the rear.