He got up.

‘Atherton, I think that I understand you, but I fear that you do not understand me.’ He went to where a self-acting mercurial air-pump was standing on a shelf. ‘What is this curious arrangement of glass tubes and bulbs?’

‘I do not think that you do understand me, or you would know that I am in no mood to be trifled with.’

‘Is it some kind of an exhauster?’

‘My dear Lessingham, I am entirely at your service. I intend to have an answer to my question before you leave this room, but, in the meanwhile, your convenience is mine. There are some very interesting things here which you might care to see.’

‘Marvellous, is it not, how the human intellect progresses,—from conquest unto conquest.’

‘Among the ancients the progression had proceeded farther than with us.’

‘In what respect?’

‘For instance, in the affair of the Apotheosis of the Beetle;—I saw it take place last night.’

‘Where?’