"You answered me very tartly when I asked you this afternoon for the difference between a camel and a corkscrew. Perhaps you would not have done so had you known that I bought that book with the intention of sending it as a present to your mother."

"Do you think ma would care about it?"

"I think it would cheer her lonely hours. There are upwards of a thousand conundrums in the book. I have only read twelve, but I found them all exceedingly amusing, and, at the same time, perfectly refined."

"Well, I don't see the good of them."

"They are an intellectual exercise, if you try to guess the right answer."

"I don't believe anybody ever did or ever will guess the right answer."

"If I had time," I said, "I believe I could generally think out a witty answer myself. I do not want to boast, but I believe so."

"Very well, then," said Eliza, snatching up the book and opening it at random, "here's one for you. 'If a lady slipped down the steps of St. Paul's Cathedral, what would she say?' Give me the answer to that."

"I will try to," I replied.

Now, just at the moment when Eliza put the question I felt that I had really got the answer, and then it seemed to pass away from me. Later in the evening I was certainly on the right track, when Eliza dropped her scissors, and the noise again put me off. I spent a very poor night; the answer kept sort of coming and going. Just as I was dropping off to sleep, I seemed to have thought of the answer, and then I would wake up to be sure of it, and find it had slipped me again.