SECURE SAILING OK LIFE BOAT, 125 



quest you will have the goodness to lay before the Society 



for the Encouragement of Arts, &c., for their inspection 



and approbation. I have made the explanation as clear as 



I can. Its construction will obviate the danger of its being Its advantag*. 



overset by persons crowding on one side, in getting in or out 



of the boat; it will facilitate the landing of men on shore or 



in boarding ships, and will carry a much greater press of 



sail without dangei*. 



As to the building part, I think that may be easily un- 

 derstood. My boat was made by men that had never before 

 seen a boat built, and I flatter myself the Society will ap- 

 prove of it. 



T am, Sir, 



Your most obedient humble servant, 



CHRISTOPHER WILSON. 



An Explanation of the Engravings of the neutral-Lailt self 

 balanced Boat. 



By the term neutral is meant, what is neither of the two Method of its 

 present modes now in use, i. e. clincher and carvel, but both co'^^^fut^t'on. 

 united, viz. clincher in the inside and carvel on the outside, 

 which neutralizes both the two into a third ; and as every 

 thing has a distinguishing name, I have taken the liberty 

 to present it to the public, under the name of a neutral 

 boat. 



The two modes of clincher and carvel-built have eacli 

 their separate advantages and disadvantages in regard to each 

 other. 



I shfdl begin with the clincher first. As the sides of the Advantages of 

 planks are firmly fastened to each other, by lapping over clincher build- 

 and rivetting, they are much stronger than if the edges only 

 butted ; and they have the property of being made tight 

 without caulking, only in the buddings and keel seams, and 

 are much lighter than carvel-built boats, and more adapted 

 for many uses ; besides saving the diiference between thick 

 and thin plank. But they have their disadvantages also ; jtg digajyajj. 

 in the first place, both unfair sides and unfair water lines, tages. 

 which makes them liable to be injured by other bodies they 



come 



