Forward Extension of Posterior Limbs 779 



We were called to attend a vigorous young mare suffering from this form 

 of dystokia. The case was recent and had not been meddled with. Delivery 

 by detruncation was prompt and easy. The mare died two days later from 

 gangrene of the vulva and vagina. 



In a fourth case a foal was found one morning incarcerated in this 

 position. Apparently the dystokia had existed much of the night. The 

 delivery was easy. Gangrene of the vulva with sloughing occurred, followed 

 by vulvar constriction of such a degree that copulation was not possible. 



We have not had a satisfactory recovery in this form of dys- 

 tokia. 



