" A man--Buck--wrote a vindication in the seventeenth-century, and Horace Walpole in the eighteenth, and someone named Markham in the nineteenth ... " "And who in the twentieth?" "No one that I know of." "Then what's wrong with your doing it?" "But it wont' be the same, don't you see? It won't be a great discovery." He said it in capitals. A GREAT DISCOVERY. Grant smiled at him. "Oh, come, you can't expect to pick GREAT DISCOVERIES off bushes. If you can't be a pioneer what's wrong with leading a crusade?" "A crusade? "Certainly." "Against what?" "Tonypandy. "