SUCTION METHODS. 41 



for various reasons a person may find suction a better 

 way for emptying an egg than expulsion. As an aid 

 to this a thin glass pipe with a bulb has been devised. 

 The object of the bulb is to prevent the fluids from 

 reaching the mouth. The lower orifice should be as 

 large as possible, and, like the blow-pipe and syr- 

 inge, perfectly smooth on the outside. 



If, from any reason, you cannot procure these m-, 

 struments, do not hesitate to begin without them; 

 and, after all, as an experienced and successful col- 



FlG. 5. 



lector remarked lately, "there's nothing like one's 

 jaws. " The most important of them all, next to a 

 proper instrument for boring the hole, is the blow- 

 pipe, and if this cannot be got of the shape desired in 

 nickel, it may readily be made out of glass-tubing, 

 one end of which can be melted in the flame of a gas 

 burner or spirit-lamp and drawn out to a fine, smooth 

 point, after which the tube be warmed enough to be 

 bent at right angles or into any other shape. Some 

 indeed prefer such a home-made blow-pipe of glass to 

 any metal one. 



