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difficulty \vc have to deal with, and one which was specially 

 felt during the Nile expedition, is the fact that the natives 

 distinguish, and camels certainly are liable to, two forms of 

 skin-disease known as Kharisk. Of these the least important is 

 Eczema which is non-parasitic ; it occurs periodically due to ordi- 

 nary causes, such as also prove predisposing and aggravating con- 

 ditions of the true mange or parasitic form. Doubtless thelattei' 

 exists, as Fleming asserts, at all seasons among Afghan, Scindh, 

 Punjab, and Bikanir camels ; but we may extend the geographical 

 range to all camel-using countries, for which statement recent 

 experiences on the Red Sea Literal and along the Nile by 

 British Veterinarians, and long exj)erience by French Veterinary 

 Officers in Algeria give ns full warrant. Nunn speaks of the disease 

 as occurring in the Montgomery District of the Punjab in August 

 and September, and again in December and January. In Bikanir, 

 Marwar, and Jessulmir the herds of camels are described as 

 seldom free from the disorder in the cold season, and it disap- 

 pears in the hot weather. Oliphant records that it is prevalent in 

 the Kuram Valley in the later part of the year. The non- para- 

 sitic and non-contagious eruption is considered to be due to dry 

 indigestible nature of the food, also to insufficient diet, for it is 

 frequent in drought years and when green food is scarce, bad 

 and scanty drinking water also may cause it • and, indeed, it seems 

 to depend on any cause of indigestion, as well as exposure "to 

 hot sun, insufficient grooming, and the phenomenon of changing 

 the coat. S.M.Smith considers that keeping the animals tied up 

 aggravates this condition on service. Nunntells us that the natives 

 of Montgomery consider it specially due to deficient supply of 

 Una {Caroxylon foetidum) for feeding purposes. The sypmtoms of 

 this form of disease are not unlike those of the coutagious form, 

 and a srreat deal of confusion between the two exists in this as 

 well as in other points as regards them, Oliphant in this Eczema 

 finds the inner sides of the thighs and on the sheath favourite 

 seats of primary eruption, a scab forming on a round white spot 

 of smooth skin. Clayton is apparently writing of non-contagious 

 Eczema, when he tells us that ''at this part of the year (July) 

 the skiu is smooth to the touch and the axillary, scrotal, perineal 



