He shook his head. "That we cannot tell. It depends on constitution; on a thousand things. But the late discoveries of medical science have given us large power of alleviation."
"My father!" said Margaret, trembling all over.

He shook his head. 'That we cannot tell. It depends on a thousand things. But the discoveries of medical science have given us large power of alleviating pain.'
'My father!' said Margaret, trembling.
