'That's only my sister's fun,' Luke replied, with a smile. 'There's no reason why I shouldn't like her.'

'I think she don't look bad,' Jack remarked, as if allowing himself to stray from chemistry to a matter of trivial interest. He added: 'But she don't come up to Miss Nancarrow. I like her; she's the right kind of girl, don't you think so?'

'First-rate.'

'I say, Mr. Ackroyd, why don't you never come now and call for her, like you used to?'

'Used to? When?'

'Why, you know well enough. Not long ago,'

'Oh, years ago!'

'No, not more than a year ago.'

'Yes, Jack; a year and a half.'

'Well it didn't seem so long. I say, why don't you? I've only just thought of it.'