“Indeed, sir,” answered the merchant, “he was in his right senses yesterday; I can assure you he is one of the ablest criers we have, and the most employed of any when anything valuable is to be sold.  And if he cries the ivory perspective glass at thirty purses it must be worth as much or more, on some account or other.  He will come by presently, and we will call him, and you shall be satisfied; in the meantime sit down on my sofa, and rest yourself.”

Prince Ali accepted the merchant’s obliging offer, and presently afterward the crier passed by.  The merchant called him by his name, and, pointing to the Prince, said to him:  “Tell that gentleman, who asked me if you were in your right senses, what you mean by crying that ivory perspective glass, which seems not to be worth much, at thirty purses.  I should be very much amazed myself if I did not know you.”  The crier, addressing himself to Prince Ali, said:  “Sir, you are not the only person that takes me for a madman on account of this perspective glass.  You shall judge yourself whether I am or no, when I have told you its property and I hope you will value it at as high a price as those I have showed it to already, who had as bad an opinion of me as you.

“First, sir,” pursued the crier, presenting the ivory pipe to the Prince, “observe that this pipe is furnished with a glass at both ends; and consider that by looking through one of them you see whatever object you wish to behold.”  “I am,” said the Prince, “ready to make you all imaginable reparation for the scandal I have thrown on you if you will make the truth of what you advance appear,” and as he had the ivory pipe in his hand, after he had looked at the two glasses he said:  “Show me at which of these ends I must look that I may be satisfied.”  The crier presently showed him, and he looked through, wishing at the same time to see the Sultan his father, whom he immediately beheld in perfect health, set on his throne, in the midst of his council.  Afterward, as there was nothing in the world so dear to him, after the Sultan, as the Princess Nouronnihar, he wished to see her; and saw her at her toilet laughing, and in a pleasant humor, with her women about her.

Prince Ali wanted no other proof to be persuaded that this perspective glass was the most valuable thing in the world, and believed that if he should neglect to purchase it he should never meet again with such another rarity.  He therefore took the crier with him to the khan where he lodged, and counted him out the money, and received the perspective glass.

Prince Ali was overjoyed at his bargain, and persuaded himself that, as his brothers would not be able to meet with anything so rare and admirable, the Princess Nouronnihar would be the recompense of his fatigue and trouble; that he thought of nothing but visiting the Court of Persia incognito, and seeing whatever was curious in Schiraz and thereabouts, till the caravan with which he came returned back to the Indies.  As soon as the caravan was ready to set out, the Prince joined them, and arrived happily without any accident or trouble, otherwise than the length of the journey and fatigue of traveling, at the place of rendezvous, where he found Prince Houssain, and both waited for Prince Ahmed.