Diseases of the Organs of Generation. 229 



pulling tlie limbs forward into tlie passage, push back the 

 body in such a way as will favor the advance of the head. 

 If the ear is reached the head may be pulled by it, till the 

 socket of the eye can be gained, and the body being still 

 pushed back the nose can soon be seized and brought up. 

 Often it is necessary to insert a hook into the eye socket 

 or between the branches of the lower jaw, so that more 

 force may be exerted. The ring in this case should be 

 turned at right angles to the hook, and a cord passed from 

 the hook side of the ring, to the opposite, and then knot- 

 ted so that the greater the force applied the firmer it will 

 hold. 



Peesentation of one hind limb AiiONE is recognized by 

 examining it as far up as the hock, which cannot possibly 

 be mistaken for the knee. The same principles are ap- 

 plied here. Noose the presenting limb, and pushing back 

 upon it and the buttocks, bring up first the hock and then 

 the foot, bending all the joints to their utmost. In the 

 cow success can usually be counted on, but the long hind 

 shanks of the foal often prove an insuperable obstacle, and 

 it becomes needful to cut the hamstrings and, leaving the 

 hock bent, to straighten out the limb above this and 

 extract in this position. 



Peesentation op the buttocks is to be recognized by 

 the rounded mass, with the tail and beneath it the anus 

 and perhaps the vulva. The process of extraction does 

 not differ from that last described, but in very powerful 

 mares the pains may be so violent and constant that it is 

 impossible to bring up even the hocks, and the limbs have 

 to be separated at the hip-joint and extracted separately, 

 after which the trunk will come easily. 



Double heads and bodies and supekeluous limbs have 

 to be removed on the same general principles, but space 

 forbids their further notice here. 



Water in the head is often an insuperable barrier tc 

 delivery, to be easily recognized by manual examination 

 20 



