, 1864-08-08

two hundred and fifty feet long, into sixteen equal
parts.
Then, the hold being sufficiently cleared to
admit Of the required depths and breadths being
properly taken. find the transverse area Of such
vessel at each point Of division Of the length as
follows:
Measure the depth at each point Of division
from point at a distance Of one third Of the
round OF the beam below such deck, or. in case
Of break, below line stretched in continuation
thereof, to the upper side Of the floor timber, at
the inside of the timber strake, after deducting
the average thickness Of the ceiling, which is
between the bige planks and timber strake; then,
If the depth at the midship division of the length
do not exceed sixteen feet, divide each depth into
four equal parts; then measure the inside hOri-
zonta breadth at each Of the three points of
division. and also at the upper and lower points
of the depth, extending each measurement TO the
average thickness of that part of the ceiling
which is between the points OF measurement /;
number these brcadths from above, numbering
the upper breadth one, and so on down TO the
lowest breadth) multiply the second and fourth
by four, and the third by two add these pro-
ducts together, and to tie sum add the first
breadth and the lest Of fifth; multiply the guam
tity thus obtained by One-thrd Of the common
interval between the breadths, and the product
shall be deemed the transverse area; but if the
midship depth exceed sixteen feet, divide each
depth into six equal paris, instead Of four, and
measure, as before directed, the horizontal
breadths at the FIVE points Of division. and also
at the upper and lower points Of the depth F.;
number them from above as before; multiply
the second. fourth, and sixth. by four, and the
third and iTth by two; add these products to-
gether, and to the sum add the first breadth and
the last, or seventh; multiply the quantities thus
obtained by one-third OF the common inte[rlval
between the breadths, aud the product shall be
deemed the transverse area.
Having thus ascertained the transverse area at
each point OF division Of the vessel, us required
above, proceed to ascertain the register tonnage
Of the vessel in the following manner:
Number the areas successively one, two. three,
&C., numb, one being at the extreme limit Of
the length at the bow, and the last number at
the extreme limit Of the length at the stern
then whether the length be divided according TO
table, into six or sixteen parts, as in classes one
and six, or any intermediate number, as in classes
two, three, four, and Eve, multiply the second,
aud every even-numbcred area, by four, and the
third aud every Odd-numbercd ARIA Except the
first and last) by two; add these products to-
they yield anything; multiply the quantities
thus obtained by One-third Of the common inter
val between the areas, and the product will be
the cubical contents of the space under the ton
mage deck; divide this product by one hundred,
and the quOtient, being the tonnage under the
Tonnage deck, shall be deemed TO be the register
tonnage Of the vessel. subject 10 the additions
hereinafter mentioned.
II there be break, poop or any other per-
manent, closed in space on the upper decks, on
the spar deck, available for cargo, or Stores or
for the beFthing or accommodation Of passengers
or crew, the tonnage Of such space shall be as
ceriained as follows:
Measure heinternal mean length OF such space
In feet and divide il into an even number Of equal
parts Of which the distance asunder shall be most
nearly equal TO those into which the length OF
the tonnage deck has been divided; measure at
the middle of its height the inside breadths,
namely. one at each eudand at each Of the points
Of division, numbering them successively one,
two, three, &C.; then to the sum Of the end
bFeadths add four times the sum of the even
numbered breadths and twice the sum Of the
odd-numbered breadths. except the first and last,
and multiply the wbclc sum by one-thiFd Of the
common interval between the breadths; the
product will give the mean horizontal area Of such
space; then measure the mean height between
the plank Of the decks and multiply by il the
mean horizontal area; divide the product by one
hundred, and the quOtient shall be deemed 10 be
the tonnage Of such space, and shall be added to
the tonnage under the tonnage decks, ascertained
as aforesaid.
If vessel has third deck, or spar deck, the
tonnage Of the space between it and the tonnage
deck shall be ascertained as follows: