I took advantage of this circumstance of talking business with him, with the object of finding out just how far the spirit’s knowledge, in matters of speculation, went.

‘Do you know,’ I said to him, ‘that your transaction is founded on two liquidations. The Italian stock is in liquidation for the 15th inst., and the 3 per cent. for the end of the month.’

‘I did it purposely. The Italian will be liquidated first, for the profits thereof are urgently required. Whoever procures the French stock for the end of the month is destined to offer a present to his daughter. I will give you a few instructions on this subject.’

I risked the question: ‘You then believe in the rise of the Italian and fall of the French stock?’

‘Your Father is not one who doubts, who believes, or who only hopes; He is always sure, because He is the Master.’

From the day the exchange transaction was made, the two contrary movements, favourable to the arbitration, were not belied; and (an important fact to take note of) every morning, with mathematical precision, the unknown predicted the stock-list which the telegraph only brought at four o’clock in the afternoon.

I wish to insist upon this fact, because some people seem to question the spirits’ possibility of foretelling the future.

Always preoccupied in studying these facts, I sometimes asked, the evening before, what the rate would be the following day. ‘I cannot tell you before to-morrow morning. I have need of the night to gather my information.’

One day, there was a difference of a farthing between the rate predicted in the morning, and the official rate received at four o’clock. When I made the remark, the unknown said to me: ‘It was a bad head who rang down the changes at the stroke of the bell.’ The spirit evidently even possessed the slang of the stockbrokers’ ring.

Seeing so much penetration, I meekly asked if he could be useful to me in my own business. He replied: ‘I did not come for that; my visit has another object in view; nevertheless I think I can be useful to you, and when the opportunity occurs, I will not forget.’