Illness increased; on the 28th of July there were thirty-three cases of cholera in our hospital, and a much larger number in the French hospital. The Duke of Cambridge was suffering from diarrhoea; indeed, a large percentage of officers of the different divisions had been attacked by this complaint, but great precautions were taken by the medical officers to prevent neglect in the early stages, and to cheek the premonitory symptoms. [Sidenote: ARMY PAYMENTS.] The Heavy Dragoons at Varna, although encamped on a lovely plateau on a promontory by the sea-side, the healthiest-looking site that could have been chosen by a medical board, in a few days lost twenty-six men from cholera--a large number out of such skeleton regiments. The ration was increased to 1-1/2lb. of meat, and a ration of rum was issued. Drilling and tight stocking began to fall into disuse, and, by a general order, moustachios were allowed, according to the pleasure of officers and men. No less than 110,000 pounds' weight of corn, chopped straw, &c., was issued daily for the horses. To this was added all the full rations of meat, 27,000lb. of bread, proportionate quantities of rice, tea, coffee, sugar, &c., for the men. The commissariat had, besides, the horses, carts, saddles, packsaddles, tents, carriages for Dragoons, Light Cavalry, Infantry, Artillery, Sappers and Miners, to find interpreters. Commissary-General Filder's office in Varna was like a bank in the City in the height of business. The officers at the other branch departments were equally busy, and it was not unusual for some of them to ride to Varna and back to Devno, a distance of more than forty miles, between sunrise and sunset. We paid in ready money, and a commissariat chest, under the care of Mr. Cowan, was established at Shumla, to keep our officers supplied with gold and silver. The French, on the contrary, gave cheques on their commissariat chest at Varna, which were only payable on presentation there. It can readily be imagined that a peasant at the other side of the Balkans, or an ignorant Bulgarian up the country, regarded this printed paper with huge disdain, and it was certainly rather hard to have to journey from Roumelia into Bulgaria in order to get 10_s._ or 12_s._ for the hire of an araba. The araba drivers were suspicious, and grew sulky and discontented. As soon as they were paid any large sum they sought, and generally with success, the first opportunity of getting away from our service. Sir George Brown and Sir E. Lyons went down to Constantinople on board the _Agamemnon_, on the 1st of August, and for several days they were busily engaged in making arrangements for the transport of the fleet, and in the preparation of boats and provisions.