29 



C. MICROPINCETTE, MICROKNIFE, MICROSPATULA, AND MIGROCAUTERT. 



Peterfi has devised various microtools made of glass, a few of which, (a) 

 a mioropincette, (b) a microknife, and (c) a microspatula, are shown in the 

 accompanying diagram (Fig. 23). 



F»<? 23 



The mioropincette may he mounted in a double needle holder (Fig. 24). The two 

 microtips are approximated by means of the screw A, and further adjusted in 

 vertical or horizontal planes "by the screws V and L. Peterfi 1923. 



F«* 24 



Figure 25 is a schematic representation of a miorocautery (4) after Peterfi, 

 showing also the electrical hook-up, in which (1) is the connecting plug, 

 (2) the resistance, and (3) the switch. Peterfi 1923. 



F/ tf .25 



