Aug. 29. THE NEW ZEALAND GAZETTE. 2739

and the letter R branded on them; back pegs are also to be branded
with the section-numbers; road-traverse pegs must be marked with
the station-number in Roman numerals, the letter R, and the broad
arrow; ranging-pegs with the broad arrow only. In forest, con-
spicuous trees adjacent to section-corners should be marked with
a distinctive mark, and a description of the tree, with its bearing
and distance from the corner, noted in the field-book. Pegs must
be inserted and lockspits made in open country at the intersections
of the boundaries of sections with every road, large stream, or
path in positions likely to be seen by the public; and in standing
forest iron pins 15 in. long and ¼ in. diameter should be driven
alongside every corner peg. All traverse-pegs should be centred
with a tack, and all pegs split in driving must be replaced.

Trenches and lockspits.
65. In open country, wherever possible, all pegs should have
trenches dug, as shown below :—

At adjacent section-frontages, thus : ——[ ]——
|

At traverse boundaries, thus : □ ——

At corners of isolated (spotting) sections, thus : [ ]——
|

On road-lines, thus : —— □<——
R
R
—— □<——

In all cases commencing 2 ft. from the peg.
The trenches to be of the following dimensions :—
(a.) At corners of survey blocks, 6 ft. long, 15 in. wide, and
12 in. deep.
(b.) At corners of isolated sections and at the ends of lines over
80 chains in length, 4 ft. long, 12 in. wide, and 10 in.
deep.
(c.) At all road, ranging, and corner pegs other than as above,
3 ft. long, 9 in. wide, and 9 in. deep.
In town and suburban surveys trenches will only be required at
the corners of each block of subdivisions.
[NOTE.—Where trenches cannot be dug and stones are available,
the peg should be packed round with stones, and the direction of
the lines should be indicated in like manner.]

Mapping.
66. In mapping, meridian and perpendicular lines are to be
drawn in blue colour at exact distances of 5 in. apart, and in their
true relative positions to the circuit initial station; from these
lines the boundaries and traverses are to be set off from the com-
puted co-ordinated distances in the traverse tables. An Ordnance
protractor may be used in filling in topographical detail. The top
of the map must always be to the north. The area of a rectilineal
figure of not more than twelve sides must be calculated; but if a
figure has a greater number of sides, or has a natural boundary,
planimeter areas, within a limit of error not exceeding ½ per cent.,
will be accepted.
67. Measured lines are to be drawn in red, calculated lines in
black, with figures in red and black respectively. Bush-lines cut
but not chained are to be drawn in red, the linkages in black.
All lineal dimensions are to be in links and decimals. Observed
bearings are to be written in blue, and those calculated in black.
New pegs should be marked by a small red circle; old pegs, when
found only, by a small black circle; old pegs renewed, by a red
circle enclosing a small black circle; iron tubes or spikes, by a
blue circle. Water to be coloured Prussian blue, roads burnt
sienna, bush green. Hills to be shaded in light Indian ink.
Adopted prior-survey data to be similarly represented, but noted
as such with reference to original field-book, plan, and traverse
reductions. (See Appendices 10 and 11.)

Title to plan to be signed by surveyor.
68. All adjacent sections and blocks are to be shown. A title in
bold, upright letters, denoting section, block, and survey district,