in the field work, time availcble and the lack of trained personnel familiar
with higher surveying.
The method used adjusts the triangles in three groups which were then
adjusted to give geometric conditions which fit the basic figure.
This
approximate solution j;ields results thit are falt to be sufficiently accurate
to verify and fix the position of the photo towers,
{ter the figures were adjusted the lengths of the sides were computed
from two previously computed lines (1. Coral to Runit, and 2. Coral to Zero “E")
to a common iine (Coral to Zero "V") about midway between the two given lines.
The accepted base sides were taken from information given in Holmes & Narvwer
Job 640 Horizontal Contrel Report 1949-50.
It still remains to be seen whether
the angles, as so adjusted, are so related as to make the value of the length of
a computed side independent of the route ured.
This was not done dus to conditions
mentioned ibove, and it is felt that the known conditions are such that they would
not justify the extra work of further adjustment.
°
18 tay 1951
T. as KERR
PRINCIPAL INGINEER
SURVESS