286 NICHOLS. 



previous lesions. One case showed an extensive eru])tion of \a\vs of 

 similar size. In order to get the good will of the 2>atients, silver nitrate 

 was applied to the lesions but M'as considered only a palliative measure 

 and potassium iodide was given if the patient, as was frequently the 

 case, showed any interest in becoming permanently cured. The lesions, 

 if left alone, seemed to run a chronic course. 



The distribution of the cases is seen in the map. (Plate \'I.) They 

 usually occurred in groups. Near the station were three adjoining 

 households infected as follows : First lioiuse, child aged 3 ; grandfather 

 aged 70 ; child aged <S had yaws one year ago ; second house, child aged 

 2; third house, child aged 2: mother aged 25. 



In another part of the town there were four cases in one house, two 

 children, the father and grandfather, and one case across the street. 

 In each neighborhood a history of previous cases could be obtained. 



While yaws is principally a disease of childhood, 5 of the cases were 

 in adults; one mother had an ulcerative yaw on one breast near the 

 nipple from nursing a child whose lips were completely covered with 

 lesions; 3 nuile grandparents had yaws on the side of the neck and head 

 from carrying children, and one father had a general ei'uption. 



Evidently both treatment and some sort of isolation is advisable to 

 eliminate this disease. An infected child of a school-teacher was made 

 to use separate dishes and care was taken to isolate and disinfect its 

 (•lothinof: no further cases occurred in the family. 



