'I don't think my nerves are ever out of tune,' Prim answered gently.

'Not when they have work to do,' said Rollo. 'Nor ever at another time, that I know.'

'But you can sing, if I don't want tuning.'

'Certainly. But in all questions that are not of duty, you have to consider the effect.'

The lazy deliberateness with which this was spoken, was at least as provoking as it was comical. Wych Hazel from her place was silently watching them all, her eyes going from one speaker to the other with wide open consideration. Now, her lips just parted and curled and came back to their gravity.

'Go onwill you?' said Dr. Arthur,'I have a perplexing question to decide before to-morrow; and it rather helps me to have somebody make a noise.'

'If you would tell us the question, perhaps it would help us make a noise,' said Dane with the same placid gravity.

'Profound!'said Dr. Arthur. 'Wellgive us something in that line.'

'What line?'

'Original and scientific observation.'