185 



the grasp is secure. Any amount of power can be 

 thus obtained ; for as the screw threads through one 

 handle, the shoulder presses against the other, and 

 thus forcing the claws together, fixes them upon the 

 substance which may be placed between them. 

 When this is done, the operator closes or folds up 

 the free lever, and using both hands, has at his com- 

 mand a power which will not necessitate employment 

 of his utmost strength. 



The above wood-cut depicts the forceps as they ap- 

 pear when put together ; and to render their mode of 



