They were both still talking in whispers, and both standing with their backs to him, looking out of the window.

"Here it is, clean forgotten and dune with!" thought Mr.Bishopriggs.

"Noo what would a fule do, if he fund this?
A fule wad light his pipe wi' it, and then wonder whether he wadna ha' dune better to read it first.

And what wad a wise man do, in a seemilar position ?" He practically answered that question by putting the letter into his pocket.

It might be worth keeping, or it might not; five minutes' private examination of it would decide the alternative, at the first convenient opportunity.