lOO VETERINARY OBSTETRICS. 



hypertrophied, and must be incised before delivery 

 can be effected. A case of persistent, or imperforate,, 

 hymen was reported in a three-year-old shorthorn- 

 Jersey heifer by Mr. J. H. Wilson, M.R.C.V.S., New- 

 bury, Berkshire, England, in the Veterinary Record, 

 December 2, 1899. 



"Want of Muscular Po-w^ to Expel the Foetus. 



This condition is seldom, if ever, present at the 

 beginning of parturition, but it is often found, that 

 after an animal has been straining for a considerable 

 length of time, with an abnormal presentation, that she 

 becomes exhausted ; the muscular fibres of the uterus, 

 for the time being, being paralysed ; and although the 

 foetus be brought to a normal position, the parent 

 makes no effort to expel it. 



In some animals, especially those in a plethoric 

 condition, the muscular tissue of the uterus undergoes 

 fatty infiltration. During pregnancy, in such subjects, 

 this paralysed condition is much more easily brought 

 about. 



In this case, the animal should be allowed to rest 

 for several hours, and stimulants and gruel judiciously 

 administered. When her strength has been partially 

 restored, traction, gently applied, will very often com- 

 plete delivery. 



