TUBE AND CAP IGNITION. 415 



tube is the work of a second, and can be put in or 

 taken out instantly, or as occasion requires, for safety 

 in shooting. Both plans, whichever used, can have 

 a brass cover (as shown in sketch of Tube Ignition) 

 that will screw completely over them, rendering the 

 gun not only waterproof but absolutely safe at all 

 times, even though the ignition were not removed. 



To keep a stock of caps, tubes, or even matches 

 dry, especially on board a yacht, nothing is so good 

 or safe as an old pickle-bottle. If half filled with 

 sawdust, and the tubes and caps shaken up with it, 

 they will keep forever. 



