B. EMBRYOTOMY OPERATIONS 



Fig. 69. 



The following exercises in embryotomy operations are 

 designed to give to the student a general view of the sub- 

 ject by a simple plan as carried out through the aid of a 

 skeleton provided with an artificial uterus into which are 

 placed freshly killed, newly born calves in such a position 

 as may be desired and the operations carried out by the 

 student. At the same time it is hoped to offer to the veteri- 

 nary obstetrist, through these descriptions, a simple and 

 effective plan for performing embryotomy which has been 

 fully tested by the author in an extensive obstetrical prac- 

 tice. In describing these operations the instruments to be 

 used are purposely limited to the fewest number and sim- 

 plest kinds, essential to their performance. The same 

 instruments are designated for each operation. 



They are, see Fig. 69 : a hooked ring knife ; a Colin's 

 scalpel ; an embryotomy chisel ; long blunt hook ; short 

 blupt hook ; repeller ; probe-pointed sector ; injection 

 pump ; mallet ; several cotton ropes i cm. in diameter with 

 a small, spliced loop at one end. 



51. CEPHAIiOTOMY 



Object. The diminution of the size of the head on ac- 

 count of its oversize or the smallness of the maternal pelvis, 

 so that it may pass through the pelvic canal. 



Technic. In these cases the head is usually engaged in 

 the canal sufficiently tight that no further fixation is neces- 

 sary. Should further fixation be desired, fix the long blunt 

 hook deeply in one orbit. After thoroughly washing and 

 cleaning the parts inject into the vagina a copious amount 

 of tepid emollient like suspensions of elm bark or linseed, 

 or apply fats like lard, oil, or vaseline in order to 

 facilitate manipulations. Carry the chisel, carefully guarded 

 by one hand, into the passage and place it accurately upon 



