I've figured it out most carefully, the time and materials, and that's practically all I'm charging you.' The truth of the matter was that Rushton had had nothing whatever to do with estimating the cost of this work: he had not the necessary knowledge to do so.

Hunter had drawn the plans, calculated the cost and prepared the estimate.
'I've been thinking over this business lately,' said Sweater, looking at Rushton with a cunning leer.

'I don't see why I should have to pay for the connecting pipe.

The Corporation ought to pay for that.

What do you say ?' Rushton laughed.