DOUBINE OB MALADIE DU COIT 



51 



Blood-letting has proved an important aid in some cases. Serum-tests, after fur- 

 ther elaboration, will, I trust, yield better results . In the meantime, owing to the 

 absence of parasites, the diagnostician must depend on clinical symptoms and consider 

 the history of the suspected animal. 



With the assistance of Dr. Gallivan, I have prepared a table of symptoms. The 

 percentages are based on an analysis of 64 cases of dourine, (56 mares and eight stal- 

 lions), that have come under our observation within the past twelve months. This 

 may be of some value to those called upon to diagnose the disease, who have not had 

 the opportunity of familiarizing themselves with the frequency of certain conditions. 



Achnowledgments. — To the Veterinary Director General, for the privilege of 

 carrying on this investigation and for advice and interest in the progress of the work. 

 To Dr. M. V. Gallivan, of Lethbridge, in securing valuable casep and for assistance 

 rendered on numerous occasions. Lastly, to the numerous capable investigators who 

 in India and elsewhere have furnished m© with a foundation and a safe guide for my 

 own studies, greatly assisting in establishing the identity of dourine on this con- 

 tinent. 



Table of Symptoms — Showing the frequency (percentages) of Symptoms in Stallions 



and Mares, respectively. 



Signs, Symptoms, Lesions. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 



15. 

 16. 



17. 

 18. 



19. 

 20. 



Genitalia : 



Tumefaction of vulva 



II II penile sheath 



Genital discharge 



Abnormal sexual excitement. Nymphomania 



Distinctly hsemorrhagic mucous membrane 



Svfc'ollen (edematous « « 



Protrusion of mucous membrane of vulva 



Eversion u h h Meatus urinarius 



Phymosis, paraphymosis 



Depigmented spots or leucodermic pa.tches (vulva, perinaeum, penis and sheath). 



Vesication 



Ulceration 



Cicatrization 



Distortion, atrophy 



Nervous System : 



Aluscular and nervous incoordination — 



(a) Fi-ont limbs and quarters 



(b) Hind h n 



Facial paralysis and distortion 



Cutancoux Lesions : 



Patchy infiltrations or plaques. 

 Localized cedema 



Ocular Phenomena : 



Conjunctivitis 



Keratitis, corneal opacity 



21. Sxippurative Processes : 



(a) Limbs and joints. 



(b) Genitalia 



22. Enlarged Lymphotics. 



23. Nasal Discharge 



* . 



a O 



75 



12 



65 

 37 

 62 

 25 

 37 

 12 



25 



75 



25 

 25 



12 



12 



25 



34 



20 

 15 



5 

 70 



5 



34 



10 



6 



9 



15 



10 



30 



5 



6 

 10 



5 

 4 



43 

 4 



9459— 4i 



