at the beginning of the Valley of Fear , Holmes and Watson are trying to deduce/guess the proper book to use in decoding Porlock's message. Holmes reasons, "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 will eliminate Bradshaw. The dictionary is, I fear, inadmissible for the same reason. " This is the reverse of the truth. The dictionary, is beyond comparison, the book richest in vocabulary. I suggest that what Doyle meant was that, as with the bible, there are too many dictionaries with different paginations; and Doyle mistakenly lumped in the dictionary with Bradshaw. Thoughts?