RSPORT ON uouni 78 



spontaneously from stallions, an<l two which contracted the disease 

 after the inoculation of a trace of blood on the scarified vulva. Of 

 the six spontaneous cases, four showed leucoderma subsequently. 

 Of the two inoculated cases, one showed leucoderma. Therefore, 

 leucoderma is not a necessary sequela of Dourine when contracted 

 spontaneously or following inoculation on the external genital 

 organs. It was, however, certain that some of the animal con- 

 tracted two diseases, viz., Dourine and Vesicular Exanthema, and 

 for the first few weeks their course ran concurrently. Further, 

 that two of the animals (stallions) exhibited, at different periods, 

 sores on the penis, arid a third stallion had no eruption of sores. The 

 mare No. 1 covered by the stallion (KUngarth) which had no sores 

 on the penis never presented any symptoms of Vesicular Exan- 

 thema or leucodermic patches on the vulva or adjacent parts. 

 Mares Nos. II and V covered by Yadgir during the persistence of 

 sores contracted Vesicular Exanthema and later developed leuco- 

 derma, whereas mares Nos. VI, VII, and VIII covered by Monarch 

 presented different symptoms according to circumstances. Mare 



VI was covered before the eruption of sores on the penis and never 

 developed Vesicular Exanthema or leucoderma, whereas mares Ncs. 



VII or VIII covered at the time the sores were appearing or durini: 

 their persistence, both suffered from marked symptoms of Vesicular 

 Exanthema and developed leucodermic patches as early as the 18th 

 and 28th days respectively after the date of covering. From the 

 above facts it would appear certain that those animals which were 

 covered by a stallion on whose penis sores were present, contracted a 

 second form of disease and leucoderma followed as a consequence. 

 But tbe inoculated cases mares III and VI I were never exposed to 

 the risk of contamination or contracting Vesicular Exanthema from 

 a stallion, and one animal, mare III, exhibited the most marked 

 leucodermic changes, whereas the other one showed no symptoms. 

 Therefore, tbe'most marked form of leucodermic changes were ob- 

 served in an animal that had not suffered from Vesicular Exan- 

 thema. Further, sores appeared on the penis of a stallion and pro- 

 duced a second form of disease of a severe character, although a 

 few days previously, on covering a mare, no 'contagium ' or bad 

 results followed the union, and in a second stallion 



