4
a)
oe
oo
3
.
nt
ie
.
Oe
Sd
JOB NO
Reproducedftom the. tiold} 18‘of the National Archives
icifie Sontliwest Region=
HOLMES.aNARVER:TING.,ENGINEERS:
SECOND ORDER TRIANGULATION
POSITION COMPUTATION
a
x
2
_ to 3
ads
ok
8
o
c
+
ij 180
od
te
-
P|
ucte
of
o
—
2
le
dome
fo
_f
1
|
7
Sy
-
.
4
so
—
he
nn Seterm +
oy
a
- ~
=
Ag
|
p'
|
Sec d'
'
,
‘
|
:
Logarithms
00.0 _
_
boob.
|
aA
ol
a!
4(9 +9)
-.{
seconds Cosa
es
B
i
ti
Ist. term |
5?
-
Sin? x
u
——
fo
oO
|;
Logarithms
vs .
"
.
Values in
- | seconds
Sin &
A
}
:
Ar» |
2d term j+
.
hn
-D
1
|
Sec d’
C
i
on
5 a
i
I
o
x
3
!
ae
Votues in
lsing@og)
—A om
mp
1
[aa
An
2d term ot
‘to S
f
A 7
+
;
Se = ae I en
an
ts
Sin
_
-—4
5Lt! a vt
'
Ss
— | —s
180 c
| o
an
Te~ Legarithms iT Value
ues in seconds
fat term
Re poe
;
d
pom ee
veh
2
|
A
t(e+o) +|
|
i
ie
me
tof
Do
60.0
~
NO
Vee nnnn te
4
on
|
xt
TRIANGLE
ag
-
CO
_
FigaeT
po
a
|_%
-
3
to 2
372
to |
:
B
2
oT
7
=
34 term Tt
-,
Lt
Mts , Z
co
:
i
Bin2(¢+4')| .
~Ax *
——————————
DATE,
-
_GOMPUTED:
“CHECKED: _
ep
.&
oe *