SPAYING HEIFERS 105 



I never clip or shave the hair from the field of 

 operation, considering that there isn't time to do 

 a good job and I am more likely to introduce 

 clipped hair than loose hair, though I often find a 

 little of the latter in my hand. I swab the field 

 very freely with a two per cent solution of zeno- 

 leum or some of the coal-tar disinfectants. 



The incision will be very little if any forward 

 of the point of the ilium and will be surprisingly 

 low down when they get up. Here the external 

 oblique muscle is aponeurotic. I make an in- 

 cision parallel with the fibres about one inch long 

 and enlarge with the index finger of each hand. 

 I then force my right hand cone-shaped into the 

 incision and as soon as I feel the peritoneum, 

 jerk in my hand so as not to separate it from 

 the wall. 



Equipment. — I wear blue overalls and a 

 jumper, a clean suit each morning; have my shirt 

 sleeves rolled up but the jumper sleeves hanging 

 loose for a protection from the sun. 



For the skin and aponeurotic incision I buy 

 old razors and carry four with me. The blade is 

 ground away so that there is only about one inch 



