DISSECTING KNIVES. 



199 



Fi-.125. 



I''iff.l26. 



The mode of using a pair of needles in breaking up 

 tissues into very small pieces is represented in fig. 127. 



Fig. l^T.—Teastng-oUt Membrane. 



With a pair of the small needles held firmly between the 

 fore-finger and thumb, the structure must be teased out ; 



