WITH SPRING SWIVEL. 349 



myself, conclude these directions with a sketch of all 

 the apparatus put together, for shooting :- 



Intricate as this may appear, in explanation, I can 

 assure my readers that I used it on salt water, for 

 several weeks, last winter, and had no trouble what- 

 ever in keeping it free from rust, except having to 

 anoint it, occasionally, with mercurial ointment, and 

 keep it always greasy, by means of working, with a 

 feather, into every part of it, plenty of linseed oil. 

 Moreover, I had no occasion to take the apparatus 

 to pieces till the end of the shooting season. 



N. B. I left my models, for some time, with Mr. 

 Fullerd, in order that he may adopt the plan of the 

 spring swivel to large guns, and thereby prevent 

 many of those serious accidents which frequently 



