'Mother,' he interrupted, instinctively omitting her name, and in a tone that convinced her his head was momentarily turned, 'that's the whole trouble. I've never thought in my life.'

'But why should you, dear?' she soothed him, wondering if people who lost their memory and wandered off exhibited such symptoms first. 'You always do your work splendidly. Don't think too much, is what I say. It always leads to worrying——'

'Hardly ever—till this moment,' he was saying in the grave, emphatic way that so alarmed her. 'Not even when I asked you to marry me, when Tom was born, or Joan, or when we took this flat, or anything.'

'You've made quite a success of your life without it anyhow, Joe dear. And no woman could ask more than that. D'you feel poorly? Joan can fetch Dr. Monson in a moment.' It was a variant of 'What?'

'I feel better and bigger and stronger,' he replied, 'more real than ever in my life before. I have never been really alive till this moment. I am—and for the first time I know it. I'm experiencing.' He stopped short, as Joan went down the passage singing, pausing a moment to look in, then tactfully going on her way again. The fluttering in his heart became more marked. Something was trying to escape. There was a whirr of wings again. 'Mother,' he said to his wife, as their heads turned back from the door together, 'do you know what "experiencing" is? D'you realise what the word means?'

She sat down, resting her arms upon the table. She looked quietly into his eyes, as at one who is about to speak out of greater knowledge.

'Joe dear, I have had experiences—experiences of my very own, you know.'

'Yes, yes, I know, I know. But what I mean is—do you get the meaning, the real meaning of the word?'

She sighed audibly. 'Not your meaning, perhaps,' she meant. But she did not say it.

'It means,' he said, delighted with her exquisite silence, 'it means— er——' He thought hard a moment. 'Experience,' he went on, 'is that "something" which changes potatoes into nourishment, and so into emotion. That's it. Until you eat potatoes, you don't exist. Until you have experiences, you don't exist. When you have experiences and know that you have them, you—persist.'