SHIP BUILDING. 
6 iticlies, and its fore end fixed 3 feet 4 
inches before tiie centre of the fore mast at 
that place. The length of the main cliannel 
is 29 teet 4 inches, and its fore end 3 inches 
hefoie the centre of the main mast. The 
length of the mizen channel is 16 feet 6 
inches, and its fore end 1 inch before the 
centre of the mizen mast. The outer edges 
ot the fore and main channels is inches 
thick, and outer edge of mizen channel 3| 
inches thick ; whicli thicknesses may be 
drawn parallel their whole length below the 
upper side. The dead-eyes, that is, their 
diameters, which are 16 inches tiie main 
and fore, and' 11 inches the mizen, may next 
he drawn, observing to place their centres 
that the rake of the chains may be clear of 
the upper deck ports, both chains and pre- 
venter plates to rake in the direction of 
their shrouds, which is best done in the fol- 
lowing manner ; continue upwards, through 
the centre, the rake of the mast to the 
upper side of the tressle trees, which for 
the fore mast is 87 feet above the keelson ; 
then draw a line about 2 inches more than 
half their diameter above, and parallel to 
the upper side of the fore channel ; then on 
this line fix the centre of the fore dead-eye 
10 inches abaft the centre of the fore mast, 
and the centre of the second dead-eye 3 feet 
9 inches abaft the foremost one’s centre, and 
the centre of the third, fourth, and fifth, 2 feet 
2 inches asunder ; then lines drawn straight 
their centres, and crossing the height set 
up the mast, gives the proper rake of each 
dead-eye, chains, and preventer plate ; and 
although there are eleven dead-eyes in the 
fore channel, their rakes and ceuties must 
be governed by the ports. The same rule 
must be observed in raking the dead-eye 
for the top mast, backstay, &c. adding tiie 
height of the top mast to the lower part of 
the head. 
In the main channel are 12 dead-eyes, 
the centre of the foremost dead-eye to be 
fixed at 12 inches abaft the centre of the 
main-mast, and the centres of the renrain- 
ing dead-eyes may be stationed four be- 
tween each port, raking them by the same 
process of those in the fore-channel. 
Here the main-top-mast, and top-gallant 
backstay dead-eyes, had much better be 
fixed on a stool, kept the height of the 
drift-sail above, as they will not only clear 
the ports better, but save a great and un- 
necessary consumption, in lengthening t.*ie 
main-channel. 
Lastly, the mizen-channel, having 7 dead- 
eyes, the four foremost ones are stationed 
between the quarter-deck ports, next abaft 
the mizen-mast ; and the other three, and 
mizen-topmast backstay dead-eye, is sta- 
tioned between the two next ports, fixing 
the centre of the foremost dead-eye. about 
4 inches abaft the centre of the mizen-mast, 
raking them as befoi'e described. 
The keelson being lately mentioned, and 
not drawn before, let it bo represented in 
the sheer plan thus : first, draw in the cut- 
ting-down line, which is a curve that limits 
the height of every floor-timber, in the mid- 
dle and the upper part of the dead or ijsing 
wood, forward and abaft, and the under- 
side of the keelson. Set up at timber S, 4 
feet 6 inches; at O, 2 feet 11 inches; at K, 
2 feet 2 inches ; at F, 2 feet | inch ; at 0, 2 
feet ; at 6, 2 feet i inch ; at 12, 2 feet | inch ; 
at 18, 2 feet 3 inches ; at 24, 3 feet 3 inches ; 
and at 30, 6 feet. Draw a curve through 
these spots, and another at 18 inches, pa- 
rallel above it, and the keelson will be thus 
far shown ; but as the fore part scarphs in- 
to the stemson, that must likewise be re- 
presented ; and first, by drawing a curve 
11 inches parallel, abaft the aft side of the 
stem, from the head to timber O, we show 
the apron or inner stem ; then another curve, 
drawn abaft the apron, 13 inches, at the un- 
der side of the upper deck, and to break in 
fair with the upper side of the keelson, will 
represent the stemson. The after end of 
the keelson scarphs into the knee, against 
the foreside of the transoms. 
We may now proceed to draw in that or- 
namental and useful part of the ship, called 
the head ; and here beauty and lightness 
should be most considered. Draw in the 
under side of the bow'sprit, as that confines 
the height of the figure ; set up above the 
upper side of the upper deck, at the aft side 
of the stem, 2 feet 11 inches ; and then draw 
a perpendicular, at i‘) feet 8 inches before 
the fore side of the stem, at the upper 
part, which will limit the fore side of the 
figure ; set up thereon, above the upper 
side of the keel, 42 feet 3 inches ; then draw 
a straight line through these two heights, 
and it will represent tlie under side of the 
bowsprit ; and another line drawn parallel 
above it, at 3 feet distance on a square, 
will show the diameter or upper side of the 
bowsprit. Now draw the knightiieads, and 
let them be sufficiently in height as to ad- 
mit a shock over the bowsprit, so as to se- 
cure it firm in its bed on the stem : to do 
this, we must first draw half the diameter 
of the bowsprit, parallel to the middle line 
of the half breadth plan, and thereon square 
