"Hardly that, Watson. You will, I am sure, agree with me that if the page be given, the number of the chapter is immaterial. Also that if page 534 finds us only in the second chapter, the length of the first one must have been really intolerable." "Column!" I cried. "Brilliant, Watson. You are scintillating this morning. If it is not column, then I am very much deceived. So now, you see, we begin to visualize a large book printed in double columns which are each of a considerable iength, since one of the words is numbered in the document as the two hundred and ninety-third. Have we reached the limits of what reasoncan supply?" "I fear that we have." "Surely you do yourself an injustice. One more coruscation, my dear Watson-yet another brain-wave! Had the volume been an unusual one, he would have sent it to me.