DISSEK TATION OX THE YAWs. 105 



vens. It is sufficient to give trie leading symptoms, .so as to 



distinguish it from the African disorder! 



Diagnosis. — The Sivvens at first seizes the throat and 

 nose ; the yaws never till after a length of time or improper 

 treatment. The eruptions in sivvens are watery, of a dirty hue, 

 and intolerant stench. Those of the yaws are small as a pin- 

 head, hard, and with no particular odour. In sivvens, lx>ils ap- 

 pear here and there, forming deep and ill-disposed ulcers. These 

 do not happen in the yaws. In sivvens, itchy tetters break 

 out, in form of ring-worms, and either occasion a deep ulcer, 

 or a scabby large spot, with inflammation. The Guinea yaws 

 have no such appearances. The sivvens rarely affect the 

 bones ; the yaws always, unless well managed. In the yaws, 

 the excrescences succeed the pimples, as well on the face and 

 body as in the axilla? and privities. In sivvens, the fungi ap- 

 pear in the groin and perinaeum, in a very advanced state of 

 the disorder. The sivvens is highly contagious. The yaws 

 arc contracted only by inoculation. The sivvens may be cured 

 early by mercurials, but mercurials in yaws are pernicious. 

 In constitutions otherwise healthy, the yaws will go off in 

 time ; but if speedy and effectual means are not used in the 

 sivvens, the patient will infallibly be destroyed. 



Several authors have spoken of the yaws and syphilis at. 

 different modifications of the same thing. Whoever compares 

 the account we have given, will find them widely different. 

 It is true that the yaws affect the bones, the nose, and the 

 palate, like syphilis, and admit of similar cure ; but in syphilis 

 there are neither eruptions nor fungi, as in the yaws, except on 

 ihe privities, and then only in form of warts. The yaws at- 

 tacks the same person only once in his lifetime; and we all 

 know that lues venerea may be and is contracted repeatedly. 

 Persons who have the yaws may contract gonorrhoea, and 

 even lues venerea. The former may be cured independent of 

 the yaws, but the latter cannot till the yaws are on the decline. 



