268 



BOVINE OBSTETBICS 



ment being 4 cm. wide. It is not probe-pointed, but the 

 cutting edge is more concave (fig. 56c). 



The embryotome to sever the vertebral column consists of 

 a rod 60 cm. long, having a cross-piece with a cutting edge on 

 the end. After separating the skin with a spatula, the crutch is 



Fig. 56&.— Hubenet's Hook. 



taken into the right hand while the other end is passed with 

 the left hand beneath the skin. As soon as the spot to be 

 severed is reached, the hand, by pressing upon the blunt part 



Fig. 56c.— Kruijt's Hook. 



of the cross-piece, drives the knife into the muscles. Eotary 

 movements are made with the right hand on the crutch while 

 the left hand presses the knife into the muscles and between 



. Figs. 57 and 58. — Knife to Sever Vertebral Column. 



the vertebrae, destroying the connection between them. The 

 cross-piece is placed on the opposite side to accommodate 

 those mainly operating with the left hand. 



K. Boer Hzn (Holland) has modified and improved this 

 embryotome. The crutch is more oblique and the cutting 

 edge has also been changed (fig. 58). 



