"'No, indeed,' he said. 'But perhaps you haven't heard. I'm in new business.'

"'Indeed!' I said, with as great a show of interest as I could command in a man whom I never met without learning of a change of calling. 'What now?'

"'Oh, I'm an expert,' he said, proudly.

"My face must have expressed interrogation, for he hastened to explain. 'An expert for legal cases, you know.'

"'In what line?' I ventured.

"'Oh, anything,' he replied. In view of his record I was free to admit mentally that his experience was no better in any one thing than in any of the others. A month or so later I was riding in an open car with a friend of Caldwell's, when we passed that chameleon. He had a blue bag under his arm and looked happy.

"'There's Caldwell,' I remarked. 'Wonder how he is doing as an expert witness?'

"'Oh, he gave that up several weeks ago,' retorted my companion. 'His court attendance gave him a new inspiration. He's studying law now.'

"'Studying law!' I cried, in amazement. 'Studying law at 65? The idiot!'

"'I don't know about that,' said my friend. 'He may not be such a fool as he looks. I was surprised when he told me that he was going to try the bar examination next spring, and expressed it. He smiled significantly and said he guessed he'd get through all right. 'You see,' he said, 'my wife's word is law, and she's been laying it down to me for thirty years.'"