He was not blind, though his sight was defective.

The frame was thirty inches long and the individual characters nearly an inch in length--about the size of the D 18 letters of Snellen's test-types, which can be read by a person of ordinary sight at a distance of fifty-five feet.

There was, I repeat, only one reasonable explanation; which was that the person who had inhabited those chambers was not Jeffrey Blackmore.
"This conclusion received considerable support from a fact which I observed later, but mention in this place.

On examining the soles of the shoes taken from the dead man's feet, I found only the ordinary mud of the streets.

There was no trace of the peculiar gravelly mud that adhered to my own boots and Jervis's, and which came from the square of the inn.