After a very cold severe Winter at _Bremen_, the Weather, from being very cold, became of a sudden extremely hot, about the 10th of _April_. In a few Days after, many People were seized with a violent Catarrhal Disorder. It often began with such a Cold and Shivering, that many imagined at first that they were going to have Agues; but soon after they were attacked with a Cough, and a Difficulty of Breathing, and Pain of the Breast, with a Head-Ach, and Pains all over the Body, especially in the Limbs.--The first Nights they commonly had profuse Sweats.--In several, it had the Appearance of a remitting Fever, for the two or three first Days.--Many had a slight Inflammation of the Throat, and a Hoarseness. In all it was attended with an acute Fever in the Beginning, and the Urine was of a high Colour; and when the Disorder had put on the Appearance of a Remittent Fever in the Beginning, it dropt a Sediment towards Morning after the second Day; and did the same in all, when the Disorder was going off.--Some had a Purging, but the greater Number were rather inclined to be costive.--The Cough in many was very violent; and the Patients, after each Fit of Coughing, had Reachings, or Strainings to vomit, exactly resembling those which come after violent Fits of the Hooping Cough.--At first the Patients spit up only a little Phlegm; but in the Decline of the Disorder, they expectorated freely.--The violent Cough and Feverishness generally continued for four, five, or six Days; with others it continued longer; and some had a Cough for two or three Weeks after the Fever left them. This Catarrhal Fever seized most of the People of the Town of _Bremen_; and there were very few of the _British_ who escaped it; at the same Time, it was epidemical in most Countries in _Europe_. We treated it entirely as an inflammatory Disorder, and none died who applied early for Relief.--Most People recovered by one plentiful Bleeding, and taking the mild cooling Medicines, such as the _mixtura e spermate ceti cum nitro_, the saline or mindereri Draughts, or such like. When the Fever and Difficulty of Breathing continued after the first Bleeding, in a Day or two a Vein was opened a second Time; and immediately after a Blister was applied to the Back, which commonly removed the Fever, and relieved the Breathing.--When the Patients were inclined to be costive, a Dose of Physic was of Service. None of the _British_ died, except one or two of the Soldiers, who remained in Quarters after being taken ill; and, instead of bleeding and living low, indulged in the Use of spirituous Liquors; and were not brought to the Hospital, till they were in the last Stage of a Peripneumony.--Many of the Inhabitants of the Town died of this Disorder, which was probably owing to Want of Care. OF THE RHEUMATISM.