Maternal Organs of Reproduction in Animals. 271 



to the head moderately tight to prevent it again bending down- 

 wards. Another cord is now to be carried in and made fast to 

 the other leg, as shown by the dotted line in the sketch. The 

 legs are then to be alternately brought forwards, and by simul- 

 taneously drawing at them and the head the fcetus will be ex- 

 tracted. 



The fourth variety I select for explanation is shown in fig. 9. 



