WM. PRESTON LANK, JR., GOVERNOR. 1879

magnetic meridian of the date of the plat and so marked on
the plat. Prom the said meridian and right angle line all
the courses and distances and co-ordinates shown on the plat,
shall be calculated. The co-ordinates shall be the distances
of a point from each of the two lines drawn through the cor-
ner of the outlined, as above directed, measured on lines par-
allel with said meridian and said right angle line North or
South, East or West of said corner, and these distances shall
be marked on the plat at the points where co-ordinates are
required by this section. The plat shall show the co-ordinates
for each corner of each avenue, road, or streets intersection
and the tangent point of all curved lines shown an the said
plat, and shall show accurately the dimensions of each lot.
No distance on the plat shall be marked "more or less", except
on lines which begin or terminate or bind on a marsh, stream
or any body of water. The plat shall show the position by
co-ordinates of not less than four markers set in convenient
places on the sub-division in such manner that from the posi-
tion of one marker the position of one other marker will be
visible. These markers shall be made of hard durable stone
or of concrete three feet of which shall be planted into the
ground. From these markers, commonly called "traverse
points" all corners and lines shall be readily calculable and
marked on the ground. If the sub-division lies in an area
where a traverse or co-ordinate system is already established
and the traverse points of said system can be found and used,
such points so used and the co-ordinate values thereof shall
be marked on the plat, then the meridian courses and dis-
tances and co-ordinates required by this Act shall be shown
on the plat in accordance with those of the already estab-
lished traverse or co-ordinate system, and no markers will
be required. All plats shall show all natural water courses
bordering on or running through said sub-division. All plats
shall contain a reference to the deed whereby the owners of
the land acquired the title to the same, setting forth the date
and place of record of said deed; and when such land shall
have been acquired by more than one conveyance, the outlines
of the land acquired by the several conveyances shall be in-
dicated by red lines drawn upon said plat; provided, however,
that nothing in this section shall prevent the maker of said
plats from placing the same on record in sections of the
size and in the manner as hereinbefore provided, except that
when such sectional plats are used, each section shall be
marked "Part one of ," "Part two of ," etc. A certi-
ficate, stating that the requirements of this section, as far
as it concerns the making of the plat and setting of the
markers, has been complied with, shall be put on the reverse
side of the plat and signed by the owner or owners of the land