_Head-ache, Bowel Complaints, and Rheumatism._—The head-ache is common, but it is only temporary, arising generally from a suddenst oppage of perspiration, and goes off again on using exercise, which, in this hot climate, immediately causes perspiration. The stomach is often relaxed with the heat, and becomes extremely painful, this they improperly call (Ujah el Kulleb) the heart ache. They are frequently complaining of gripings, and universal weakness, which are probably caused by the water they continually drink; they complain also of (Ujah el Adem) the bone-ache, rheumatism, which is often occasioned by their being accustomed to sit on the ground without shoes. _(Bu Telleese) Nyctalopia._—This ophthalmic disease is little known in the northern provinces; but in Suse and Sahara it prevails. A defect of vision comes on at dusk, but without pain; the patient is deprived of sight, so that he cannot see distinctly, even with the assistance of candles. During my residence at Agadeer, in the quality of agent for the _ci-devant_ States General of the United Provinces, a cousin of mine was dreadfully afflicted with this troublesome disease, losing his sight at evening, and continuing in that state till the rising sun. A _Deleim Arab_, a famous physician, communicated to me a sovereign remedy, which being extremely simple, I had not sufficient faith in his prescription to give it a trial, till reflecting that the simplicity of the remedy was such as to preclude the possibility of its being injurious: it was therefore applied inwardly; and twelve hours afterwards, to my astonishment, the boy’s eyes were perfectly well, and continued so during twenty-one days, when I again had recourse to the same remedy, and it effected a cure, on one administration, during thirty days, when it again attacked him; the remedy was again applied with the same beneficial effect as before. _Ulcers and eruptions._—Schirrous ulcers, and other eruptions, frequently break out on their limbs and bodies from the heated state of the blood, which is increased by their constant and extravagant use of stimulants; for whenever they sit down to meat, the first enquiry is (Wosh Skune) Is it stimulating? if it be not, they will not touch it, be it ever so good and palatable. These eruptions often turn to leprous affections.