make an affidavit

References in classic literature ?
No one can make an affidavit to the contrary, and therefore I still say nothing against the supposition: indeed, were geologists to assert that the whole continent of America had in like manner been formed by the simultaneous explosion of a train of Etnas laid under the water all the way from the North Pole to the parallel of Cape Horn, I am the last man in the world to contradict them.
He was even ready to make an affidavit that he had been slaughtered.
I am inclined to argue from this, that he had never left off saying so; but I could not make an affidavit of that part of the story, if required to do so by my Queen and Country.