But to come to the more practical side of desert life. Travelling in the desert is not all a path of roses, but, given good health, fine weather, and pleasant company, it is a very enjoyable way of passing two or three weeks. On the other hand, I know of nothing more wretched than being overtaken by illness when far away in the desert. Then you feel how utterly alone and helpless you are, for it is impossible to travel on, and at the same time well-nigh impossible to stay where you are! We have had this experience more than once during our many travels, and found it not at all pleasant. Once I was taken ill in this way, and the only place to be found as shelter was a filthy stable, full of rats, cockroaches, and other horrible creatures. If you wish thoroughly to enjoy a journey across the desert, you must choose your time well and wisely. The best time is the early spring, before the great heat begins. If it is essential to travel during the summer, all the stages have to be done by night, and this is much more tiring, as it is seldom possible to sleep during the day owing to the pest of flies, mosquitoes, and other lively companions. The rest-houses of Persia are of three grades or kinds, viz. "mehman khanehs," "chappa khanehs," and caravanserais. The first of these three are found between Resht and Teheran. They are supposed to be run after the plan of a European hotel! Beds are supplied, and sometimes a tooth-brush and comb! The traveller is shown into a room in which the beds are kept ready for all passers-by: it is not thought necessary to change the bedding too often! The furniture consists of a washstand, table, and couple of chairs, and everything is as dirty as can be. I much prefer the ordinary caravanserai, which is found all over Persia. These are generally built by a wealthy man who wishes to do some "good deed," to make a name for himself, and gain merit in Paradise. A caravanserai is not the cleanest spot on earth! But after travelling a little you get used to a certain amount of dirt, and are very much surprised if by chance you come across a fairly clean rest-house. These caravanserais are built, as a rule, in the form of a square, the sides of which are occupied by rooms leading off the courtyard, the centre being the resting-place of mules, donkeys, horses, and all other kinds of animals. At the end of the stage you fix on the cleanest of these rooms, and your servant sweeps all the accumulated dirt and dust of ages into one corner, thus raising a cloud of dust and disturbing the peace of myriads of "pilgrims of the desert." After waiting a few minutes to allow the dust to settle a little, you then furnish your room for the night by spreading a rug on the filthy floor, and setting up your travelling beds, chair, tables, &c. As likely as not, there will be no door to the room, so you knock in a couple of nails and fasten a curtain over the doorway to keep out the prying eyes of your too near and inquisitive neighbours.