“So we have contracted our field of search to a large book, printed in double columns and in common use.”
“The Bible!” I cried triumphantly.
“Good, Watson, good! But not, if I may say so, quite good enough! Even if I accepted the compliment for myself, I could hardly name any volume which would be less likely to lie at the elbow of one of Moriarty’s associates. Besides, the editions of Holy Writ are so numerous that he could hardly suppose that two copies would have the same pagination. This is clearly a book which is standardized. He knows for certain that his page 534 will exactly agree with my page 534.”
“But very few books would correspond with that.”
“Exactly. Therein lies our salvation. Our search is narrowed down to standardized books which anyone may be supposed to possess ”
“Bradshaw!”
“There are difficulties, Watson. The vocabulary of Bradshaw is nervous and terse, but limited. The selection of words would hardly lend itself to the sending of general messages. We
