296 SCARLATINA, 



preceding it. In mild cases, probably a few days — during which 

 the rash and blood-spotting of the membranes have come and 

 gone, or the original eruption has disappeared and been replaced 

 by a fresh crop — are sufficient to establish convalescence, the 

 cough or soreness of throat is removed, and the animal quickly 

 regains his former condition. 



h. Scarlatina Anginosa. — This more severe form of the fever 

 may start into existence at once, or it may be but the steady 

 or more rapid passage of the simple form to more numerous, 

 more complex, and more serious symptoms. In addition to 

 those already noted as characteristic of the simple form, there 

 are others more distinctly indicative of involvement of the 

 organs and structures in the region of the throat. The swell- 

 ings on the limbs, and the disturbed condition of the cutaneous 

 surface over the body, are here more extensive and more dis- 

 tinctly marked. The characteristic rash and vesicular erup- 

 tion of the skin will be found more frequently over the 

 extremities than the trunk ; and, as in the simple form, it is 

 noticeable as not occurring at once over the entire surface 

 which it may ultimately cover, but as appearing in successive 

 crops, or as spreading from separate and distinct centres, until 

 several patches are united in one. None of these tracts, where 

 the eruption is shown, are distinctly elevated above the surface 

 of the surrounding skin, in this differing from the local swell- 

 ings of purpura. There seems little disturbance amongst the 

 vessels of the subcutaneous tissue, the serous fluid quietly ooz- 

 ing through the skin, forming minute vesicles, which rapidly 

 rupture, the contained fluid hardening in very small tear-like 

 masses. The petechial spots are larger, darker in colour, and 

 more disposed to coalesce, in many instances by such union, 

 forming extensive blood-markings or blotches on the nasal 

 membrane, particularly on that of the septum, Avhile the mem- 

 brane lying between or amongst these patches will generally 

 be changed from its normal colour to a dirty yellow. A similar 

 disparity as to extent, depth of colour, and tendency to become 

 confluent, mark the blood-spots on the membrane of the mouth 

 and tongue, while not unfrequently this latter organ is thickly 

 furred, and along its inferior surface, particularly at the frse- 

 num, there are not merely the blood-markings already noticed, 

 but extensive effusions of straAv-coloured fluid beneath the 



