298 SCARLATINA. 



previous to their subsidence. The pyrcxial symptoms show 

 httle defervescence during the continuance of the angina and 

 the appearance of the rash. Following abatement of the fever 

 and decline of the eruption, there is shedding of the hair over 

 the situations where exudation has occurred, and a furfuraceous 

 exfoliation of the scarf-skin ; this shedding of the epidermis is 

 not confined to those situations alone, but is to a certain 

 extent distributed over the whole body. In severe cases con- 

 valescence is often protracted from continued swelling of the 

 glands of the neck, while it not unfrequently happens in such 

 protracted cases that the inflammatory action after apparent 

 subsidence takes a fresh start, and terminates in suppuration 

 in some of these structures, generally those in the submaxillary 

 or brachial region. For some time after all active symptoms 

 have disappeared, general Aveakness and debility continue 

 marked ; there is often much irritability of the heart, and 

 special weakness of the circulatory system, with a tendency to 

 dropsical effusions in the serous cavities of the thorax and 

 pericardium. 



Diagnosis. — This disease in the horse is apt to be con- 

 founded with some other affections which, although resem- 

 bling it in many features, are yet essentially distinct ; the 

 chief of these are eczema, purpura htiemorrhagica, and ery- 

 sipelas. 



From eczema it is distinguished by its general association 

 with some previously existing morbid condition, while whether 

 appearing with such antecedents or not, it is further marked 

 off from the different forms of eczema by the greater systemic 

 disturbance and general pyrcxial symptoms developed during 

 its progress, and more particularly by the blood-spots which 

 occur on the nasal and buccal membranes, the accompanying 

 sore throat and swollen glandular and other structures. 



It differs from purpura in the general freedom from swelling 

 of the head and the tissues forming the nasal apertures, in 

 the character of the petechias, the absence of pure blood- 

 effusion from the nasal membranes, and the character of the 

 cutaneous surface which is the seat of the exudation or 

 eruption. In this disease there is no perceptible swelling above 

 the level of the surrounding skin ; in purpura, the disturbed 

 cutaneous surface is considerably elevated above the plane upon 



