Instruments for Section 



607 



center, but at one side, so that it will cut completely through the 

 tissues on that side to which it is applied, and not be driven 

 clear through the limb with some of the tissues intact upon either 

 side and thus be caught and held as though in a vice. 



Such an instrument is cheap, is easily and safely applied by 

 the operator to any point within his reach, can be readily driven 



r 



\ 



Fig. 104. Obstetric Chisels. 



a, deBi;uin's vertebra knife. 



b, de Bruin's embryotomy chisel. 



c, Withers' embr3'otomy chisel. 



Fig. 105. Spatulas. 



a, Spatula of Harms. 



b, Spatula with handle. 



c, Small spatula of deBruin. 



d, Curved spatula of de Bruin. 



through any tissue of the body whether soft or hard, has little 

 tendency to break or get out of order, is easily kept clean, and 

 will accomplish any task in embryotomy which can be performed 

 by the chain-saw, by the Pflanz embryotome or by any machine 

 however complicated or expensive. It can be applied to any 

 part where the other in.struments can and in many places where 

 they cannot be at all, or only with very great difficulty. In the 



