I2 INTRODUCTION. 
Two dissecting scalpels, one large and one small. 
Two dissecting forceps, one large with blunt ends, 
and one small with fine points for more delicate work. 
Two pairs of scissors, one with large blades for 
coarse work and one small pair for fine dissection. 
One seeker, an instrument of the form shown in II, 
Fig. 1. This will be found very useful in dissecting 
nerves, blood-vessels, etc., when by careful tearing with 
the seeker instead of cutting with the scalpel or scis- 
sors structures may be revealed which otherwise would 
be destroyed. 
Several weighted hooks of the kind shown in IV, 
Fig. 1. These consist simply of a strong hook to 
which is attached a cord about two feet in length, car- 
rying at its other end a lead weight. The most con- 
venient weight to use ‘s about 125 grammes, though 
it is well to have some lighter and some heavier than 
this. These weighted hooks are useful for holding 
back the skin, muscles, etc., while dissecting, and are 
much preferable to the ordinary chain-hooks sold with 
dissecting cases. 
In addition to these instruments there should be at 
hand for general use several artery-clamps or ‘ serre- 
fines,” either of the form usually sold by instrument 
makers, or preferably like that shown in V, Fig. 1, hav- 
ine longer and narrower points; several aneurism 
needies of the form shown in III, Fig. 1, for passing 
ligature threads round blood-vessels, etc.; one or more 
pairs of strong bone forceps such as can be obtained 
from any instrument-maker ; a number of small sponges 
and a small saw. 
Cannulas and Injecting Syringe. The cannulas 
used in injecting can readily be made of any desired 
size from ordinary glasstubing. The steps in the pro- 
