By the time they had finished with the Mosque of Sultan Hassan our friends were weary, and glad to return to the hotel. The next day was Friday, the Moslem Sunday, and at the suggestion of the Doctor they went to see the whirling dervishes, who perform only on that day. We will let the boys tell the story of their visit to these singular people. "The dervishes are religious devotees corresponding to the monks of the Catholic Church, whom they resemble in some of their practices. They are supposed to be wholly occupied with religious matters, and there are several branches or orders of them, who are distinguished by their dress. They have property set apart for their use, and some of the societies are very wealthy; the most numerous, and at the same time the richest, are the Mevlevies, who can be recognized by their tall caps of gray felt, with jackets and robes of the same color. The lower part of the robe is like a lady's skirt, as it is made in folds, and will spread out into a large circle when the wearer whirls rapidly. They are the most respectable of all the orders of dervishes, and some of them are men of education and former high position. [Illustration: A BEGGING DERVISH.] "There are many independent dervishes who are simply religious beggars, belonging to no sect or order: they go around soliciting charity, or sit at the street corners or in public places, dressed in a way to attract attention. We passed one yesterday who had the saw of a saw-fish in one hand and an instrument resembling a child's rattle in the other; a cocoa-nut shell hung on his breast, to hold the donations of the charitable, and he sat on a box that resembled a rude bird-cage. He was extremely dirty in appearance, his legs were bare, and his hair was long and uncombed; he stared at us, and shouted something we did not understand, and when we passed by without giving him anything, he shook his rattle in an angry way. The guide says these men often go into the houses of rich people, and the latter are afraid to turn them out because of their so-called holy character. They are the most impudent beggars you can find anywhere, and many of them are said to be thieves and murderers, who disguise their true character under the cloak of religion. "We went to see the Mevlevies, and on the way to their temple the Doctor told us that the whirling was a part of their religious observance, like the dancing of the Shakers in America, and the practices of other sects, whose fervor is often followed by insensibility. The dizziness that results from whirling is considered a state of religious devotion, and the most suited to the contemplation of heavenly things, and hence their efforts to throw themselves into this ecstatic condition. [Illustration: A WHIRLING DERVISH.]