Whether assumed in summer or in winter, the ihram is equally inconvenient and prejudicial to health, particularly among the northern Mohammedans, who, accustomed to thick woollen clothes, are at this period obliged to leave them off for many days; yet the religious zeal of some who visit the Hedjaz is so ardent, that if they arrive even several months previous to the Hadj, they vow on taking the ihram, in approaching Mekka, not to throw it off till after the completion of their pilgrimage to Arafat; and thus they remain for months covered, night and day, only with this thin cloak; [The Arabian historians relate that Haroun Errashid and his wife Zobeyda once performed the pilgrimage on foot, from Baghdad to Mekka, clothed only with the ihram; that at every station of the caravan there was a castle, with apartments splendidly furnished; and that the whole road was covered daily with carpets, on which they walked.] for the law forbids any other covering even at night; but with this few hadjys strictly comply. When the ancient Arabs performed their pilgrimage to the idols at Mekka, they also took the ihram; but that pilgrimage was fixed to a certain period of the year, probably autumn; for although the Arabs computed by lunar months, they inserted one month every [p.90] three years; and thus the month of the pilgrimage did not vary in its season, as at present. The intercalation of a month, established two hundred years before Islam, was prohibited by the Koran, which ordained that the same pilgrimage should be continued, in honour of the living God, which had before been performed in honour of idols, but that it should be fixed to a lunar month; thus its period became irregular, and in the space of thirty-three years was gradually changed from the depth of winter to the height of summer. The person covered by the ihram, or, as he is called, El Mohrem, is not obliged to abstain from particular kinds of food, as ancient Arabians, who, during the time of wearing it, did not taste butter among other things; but he is enjoined to behave decently, not to curse, or quarrel, not to kill any animal, not even a flea on his body, nor to communicate with the other sex. The ihram of the women consists of a cloak which they wrap completely about them, with a veil so close that not even their eyes can be seen: according to the law, their hands and ankles must be covered, but this rule they generally disregard. Although my companions, the soldiers, were going to Mekka, as well as myself, they did not think it necessary to take the ihram, which, as I have already said, the law prescribes at all times of the year to every one travelling towards the sacred city.