Just here, perhaps, I had better explain our use of the manual alphabet, which seems to puzzle people who do not know us. One who reads or talks to me spells with his hand, using the single-hand manual alphabet generally employed by the deaf. I place my hand on the hand of the speaker so lightly as not to impede its movements. The position of the hand is as easy to feel as it is to see. I do not feel each letter any more than you see each letter separately when you read. Constant practice makes the fingers very flexible, and some of my friends spell rapidly--about as fast as an expert writes on a typewriter. The mere spelling is, of course, no more a conscious act than it is in writing.