“Merriwell got that this morning,” said the coach. “We decided that the best way to trace the authorship of that document was to get all the players to make similar diagrams. There’s one peculiar thing about that first paper, Davis. You’ll notice that Burtis――supposing he did it, and I can’t see any reason to doubt it――labeled the positions with small letters. See what I mean? He has written, or, rather, printed, ‘l. h. b.’ in what printers call lower case, instead of ‘L. H. B.’ in capitals. Now, if you look through all the diagrams submitted to-night, and every fellow handed one in, you’ll find that Burtis is the only one who does that. Then, too, there is the evidence of the paper. Both sheets apparently were torn from the same block. The paper is the same, a deep buff in color. There’s one other paper there that is buff――I think it’s Brinspool’s――but it is lighter. Now, two and two usually make four, Davis.”