"By an arrangement of magnesium wire."
"Which requires to be ignited?"
"Yes."
"By means of a match?"
"Yes."
"It is, I suppose, necessary that the device be opened before you can light the wire?"
"Yes."
"You saw the figure of a man, your suspicions were aroused, you brought forward the flashlight, you opened it, you found the match box, you took from it a match, you struck the match, you applied the flame to the magnesium wire, you threw the light upon the door in Catchpole Square. That is how it was done?"
"Yes."
"To strike a match requires two hands, one to hold the box, the other to hold the match. You admit that?"