1016                             LAWS OF MARYLAND                        [CH. 624

line prints on linen; shall contain the courses and distances of all the
outline or perimeter of as much of the whole tract, proposed to be
subdivided, as is shown on the plat and on all roads, streets and
avenues. Where the alleys and lot lines shown on the plat are not
parallel with the roads, streets and avenues, the courses and distances
of such lines shall be put on the plat. The radii and chords of all
curved lines shall be shown on the plat by courses and distances and
their tangent points located by the co-ordinates hereinafter defined.
The plat shall show a meridian line drawn through one of the
corners of the outline or perimeter of the whole tract and another
line drawn at right angles to said meridian through the same point.
The meridian, so drawn, shall be either a true meridian or the
magnetic meridian of the date of the plat and so marked on the plat.
From 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 distance of a point from each of the two
lines drawn through the corner of the outline, as above directed,
measured on lines parallel, with said meridian and said right angle
North or South, East or West of said corner, and these distances
shall be marked on the plat as the points where co-ordinates are
required by Sections 71 to 74. The plat shall show the coordinates
for each corner of each avenue, road or street intersection and the
tangent point of all curved lines shown on 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
position 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 can be readily calculated 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
distances and co-ordinates required by Sections 71 to 74 shall be
shown on the plat in accordance with those of the already established
traverse or co-ordinate system, and no markers will be required,
but all other requirements of Sections 71 to 74 shall be complied with.
A certificate, stating that the requirements of Sections 71 to 74, as
far as it concerns the making of the plat and setting of the markers,
has been complied with, shall be put on the plat and signed by the
owner or owners of the land shown thereon. The plat shall be
signed and sealed by a registered Land Surveyor [, or a registered
Professional Engineer].

SEC. 2. And be it further enacted, That this Act shall take effect
June 1, 1955.

Approved April 25, 1955.