I was reading the Hound of the Baskervilles, and tripped upon this phrase.
'Capital article this on Free Trade.'
I suppose it's the title of the Times article from which Sherlock speculates that the sender of the mysterious letter cut out to paste on the letter.
But, what I find most intriguing is how those words are put together, I have no clue in what that means exactly.
Could anyone "translate" into more clearer wordings?