INSTRUMENTS. 117 



1. A knife. Its shape nnd cutting edge are 

 shown thus -^~ i \ but a common scalpel 

 or surgeon's knife will answer, or an ex- 

 ceedingly sharp and fine-tempered pen- 

 knife. 



2. A tenaculum, six inches long, (^ =3 9 

 gradually tapering, the reflected edge, as 

 well as the tip, very sharp. 



3. A pair of forceps, round, six inches 

 long, :: "*Q? tne fingers four inches, the 

 points square, and perfectly tight. 



4. Tube, three and a half inches long, 

 smooth inside, (J_ j so as not to cut the 

 hair as it is moved backward and forward 

 through it. Two sides of the upper end are 

 flattened, to enable it to be conveniently 

 grasped by the thumb and fore finger. 

 The lower end is indented, to prevent the 

 testicle from turning, and also in order not 

 to compress at once too closely the sper- 

 matic cord. This figure ^=^ >=> shows 

 the tube, with the horse hair looped and run 

 through it. 



5. The elevator is 6 inches long, ^9 , 

 the bowl truncated and elongated, oval, per- 



