APPENDICES 



APPENDIX A 



TONNAGE OF THE BRITISH AND AMERICAN MEN-OF- 

 WAR IN l8l2-I5 



ACCORDING to Act of Congress (quoted in "Niles' 

 Register," iv, 64), the way of measuring double- 

 decked or war-vessels was as follows: 



"Measure from fore-part of main stem to after- 

 part of stern port, above the upper deck; take the 

 breadth thereof at broadest part above the main 

 wales, one-half of which breadth shall be accounted 

 the depth. Deduct from the length three-fifths of 

 such breadth, multiply the remainder by the breadth 

 and the product by the depth ; divide by 95 ; the 

 quotient is tonnage." 



(i.e., If length x, and breadth = y; 

 Tonnage (x I y) X y X i y.) 



95 



Niles states that the British mode, as taken from 

 Steele's "Shipmaster's Assistant," was this: Drop 

 plumb-line over stem of ship and measure distance 

 between such line and the after-part of the stern 



(261) 



