We had some unlucky spells. It is a curious thing that luck seems to enter into the matter of death rates. I mean that sometimes for two or three days at a time cases seemed to go wrong and die, on the slightest provocation. At other times, when the luck changed, the most hopeless cases would clear up. It was the same way in the operating theatre. It is the same way with everything, whether it be card playing, or business, or war, or love, or thinking, or sport. There are phases in which something seems to overshadow the scene. The direction of the current changes. For a time everything seems to go wrong. The machinery behind life, that is always helping you on, stops and reverses. And there is another aspect of the same thing which doctors sometimes see in a remarkable way. It is the occurrence of similar kinds of cases at the same time. For part of it there is the scientific explanation of infection by germs. [Illustration: EZRA'S TOMB.] The Shimal was now blowing from the north-west, bringing the dust in from the desert. At times it produced a strange effect. The atmosphere became dun-coloured, thickened at places into opaque and rushing veils. Under the pressure of the strong, hot wind the big _mahallas_, with their white sails in tense curves, careered down the river with only a streak of white foam under the prow to show they were not suspended in the air. The further bank, pale and unsubstantial, was outlined fitfully in the hurrying gloom. A kind of lividity spread over the picture, bleaching it of all colour. Everything in the wards became silted over with fine powder, and the big yellow and black hornets and the long-legged wasps that seem to have two or three pendant abdomens and are the hue of Burgundy marigolds, came hurtling through the unglazed windows to crawl, half-stunned, about the mud floors. How the ward Sisters anathematised these days! The storms provoked a feeling not unlike east winds at home. They brought out small aches and pains and one got irritable. A thunderstorm would have cleared away the effect, but the sky remained cloudless and brazen. IX ARABIAN COMEDY Nothing was happening at the front. Occasionally there was spasmodic shelling and bomb dropping, but the heat prevented any general activity. Headquarters was under howitzer fire at times. One shell landed in the mess waiter's tent and damaged nine men. There was a tale told at the time concerning a powerful Sheik near the front who was neutral. His son becoming ill, he sent to the Turks, and also to us, for a doctor. The Turks, or rather the Germans, sent a German doctor, and a German lady as well, the latter as a bribe. We sent a medical officer, unattended. The Sheik kept them all. So far as I know he may still be keeping them, and remaining strictly neutral. It must be remembered that the Arabs--as well as many Indians--have been led to believe that not only the Kaiser is a Mohammedan, but the German people in general.