TABLE 1. 
H| RECORD OF EXPERIMENTS FROM 8 TO 9 A. M. AND 2.30 TO 7 P. M., STADIA MEASUREMENTS AGGREGATING 43.3 MILES. 
OEWOBK. 
Weather. 
Ekroks of 
the Stadia on Distances of 200 to 1,000 Ft. 
Errors of t 
he Stadia on Distances 
OF 1,100 
to 2,000 Ft. 
m. 
m. 
m. 
200 Ft. 
300 Ft. 
400 
Ft. 
500 
Ft. 
600 Ft. 
700 Ft. 
800 Ft. 
900 
Ft. 
1,000 Ft. 
1,100 Ft. 
1,200 Ft. 
1,300 Ft. 
1,400 Ft. 
1,500 Ft. 
1,600 Ft. 
' 1,700 Ft. 
1,800 Ft. 
1,900 Ft. 
2,000 Ft. 
(200 Ft. — 1,000 Ft'.). • 
(1,100 Ft. - 2,000 Ft.).' 
Totals. 
r, nfn 
Time. 
Temperature. 
Wind. 
60.97 ’ 
91 
121 
l 938 
152/123 
182J107 
213.390 
243.874 
274*358 
304.842 
335.326 
365 810 
396*294 
426/779 
457*263 
487/748 
518*232 
548 
.717 
579*200 
609 
.684 
Uncom¬ 
pensated 
Distance 
Fractional 
Error in 
Uncom¬ 
pensated 
Distance 
Fractional 
Error in 
Closing To¬ 
B|| 
~ 
- 
■B 
- 
- 
: '.-A 
- 
■"fj 
- 
+ 
- 
+ 
- 
+ 
- 
+ 
- 
+ 
- 
+ 
- 
- 
+ 
- 
+ 
- 
+ 
- 
+ 
- 
- 
(Meters.) 
(Meters.) 
Closing. 
(Meters.) 
(Meters.) 
Closing. 
tal Dis- 
August 4 
5-5.30 P. M. 
80° shade. 
No vib. even close 
to ground. 
Clear. 
No wind. 
0.14 
0.03 
0,2 
0,2 
0.68 
0.21 
0,9 
0.31 
0.01 
- 0.17 
914.53 
+ fAf 
- 0.10 
2438.74 
-FTkT 
- Tib# 
6 
2.30-4 P. M. 
86° shade. 
Only vibration a 
glimmering. 
Cloudy. 
No wind. 
0.04 
0.24 
0.13 
0.03 
0.42 
0.32 
0.32 
0.28- 
0.48 
0.09 
0.68 
0.48 
0.21 
0.68 
0.79 
0.60 
1.48 
0.70 
0.29 
+ 0.74 
1646,15 
’ + fAt 
+ 0.56 
4725.05 
+ AW 
+ AW 
“ 6 
5-5.30 P. M. 
84° sun. 
82° shade. 
glimmering. 
Cloudy. 
,No wind. 
0.04 
0.13 
0.32 
0.12 
0.62 
0.21 
0,91 
0.30 
0.00 
0.60 
4 1.23 
914.53 
+ vk 
+ 0.22 
2438.74 
+ TrkiT 
+ FSIF 
“ 15 
5-5.30 P. M. 
86° shade. 
Rod distinct; no 
vibration. 
Cloudy. 
No wind. 
0.04 
0.06 
0.13 
0.02 
0.37 
0.42 
0.02 
0.42 
0.82 
1.10 
0.61 
0.71 
0.31 
0.69 
2,39 
1.40 
0.70 
1.29 
+ 2.14 
1646.15 
+ »k 
+ 9.20 
4267.79 
+ rk 
+ At 
“ 15 
5.30-6 P. M. 
65° shade. 
Rod distinct; no 
vibration. 
Partly cloudy. 
No wind. 
' 0.04 
0.01 
0.03 
0.07 
0.12 
0.22 
0.10 
0.28 
0.18 
0.44 
0.38 
0.98 
0.29 
0.79 
0.70 
1.10 
0.51 
1.10 
1.20 
- 0.23 
1646.15 
— TiVr 
- 5.29 
4725,5 
- irk 
- tAt 
“ 20 
8-8.30 A. M. 
72° shade. 
Slight vibration. 
Slight breeze. 
0.04 
0.01 
0.13 
0.03 
0.74 
0.32 
0.00 
0.21 
0.41 
A 1.25 
1066.94 
+ ktr 
+ 0,2 
701.14 
+ tAt 
+ At 
“ 21 
8-8.30 A. M. 
67° shade. 
No vibration even 
at 2,000 ft. 
Clear. 
Slight breeze. 
0.04 
0.01 
0.08 
0.17 
0.22 
0.00 
0.08 
0.18 
0.31 
0.41 
0.51 
0.69 
0.11 
0.20 
0.80 
0.49 
0 10 
1.59 
+ 0.24 
1524.21 
+ ffVf 
if 5.21 
4725.05 
+ rk ' 
+ ii’tt 
I 21 
8:30-9 A. M. 
78° sun. 
67° shade. 
Air dusty; little 
vibration. 
Clear. 
Slight breeze. 
0.06 
0.06 
0.07 
0.07 
0.07 
0.00 
0.08 
0.42 
0.09 
0.21 
0.51 
0.01 
0.81 
0.20 
.10 
0,1 
0.10 
0.20 
+ 0.29 
1524.21 
' + fAf 
+ 1.44 
4725,5 
+ irifc 
+ AW 
“ 21 
5-5.30 P. M. 
79° sun. 
72° shade. 
Air dusty; little 
vibration. 
Clear. 
Still. 
0.01 
0.06 
0.03 
0.12 
0.12 
0.00 
0.12 
0.12 
0.01 
0.31 
0.61 
0.21 
0.01 
0.40 
0.30 
0.39 
0.60 
0.20 
+ 0.20 
1524.21 
+ Aft 
+ 1.84 
4725.05 
,+' fAt 
A fAf 
“ 21 
5.30-6 P. M. 
72° sun. 
66° shade. 
N at T *000 ft; e rod 
distinct. 
Clear. 
Still. 
0.04 
0.01 
0.03 
0.12 
0,7 
0.00 
0,8 
0.08 
0.21 
0.51 
0.81 
0.31 
0.71 
0.00 
0.10 
0.21 
0.99 
0.78 
+ 0.09 
1524.21 
+ tAjt 
A 4.21 
4725,5 
A tAf 
+ tin 
“ 23 
2.45-3.30 P. M. 
120° sun. 
96° shade. 
Slight vibration; 
rod distinct. 
0.09 
0.06 
0.13 
0.13 
0.22 
0.08 
0.10 
0,3 
0.18 
0.11 
0,1 
0.51 
0.09 
0.11 
0,9 
0.10 
+ 0.07 
1646.15 
+ fAtf 
+ 1.94 
2987.45 
+ v T¥IF 
“ 23 
3.30-4 P. M. 
92° shade. 
Very slight vibra- 
Hazy. 
Still. 
0.09 
0.04 
0.13 
0.03 
0.37 
0.12 
0.00 
0.22 
0.12 
0.21 
0,1 
1.11 
0.91 
0.19 
0.69 
1.10 
0,9 
0.89 
L-|f- 1.12 
1646.15 
+ tAf 
if- 5.42 
4115.37 
+ At 
+ TFT 
“ 23 
4-4.30 P. M. 
91° shade. 
No vibration; rod 
distinct. 
Cloudy. 
Still. 
0.04 
0.04 
0.13 
0.13 
0.57 
0.12 
0.10 
0.92 
0.32 
0.01 
0.41 
0.81 
0.41 
0.31 
0.19 
1.10 
0.19 
0.30 
+ 2.37 
1646.15 
+ k 
+ 3.13 
4115.37 
+ tAt 
July 5 
8-9 A. M. 
70° shade. 
after 426 m. 
Clear. 
Slight. 
0.06 
0.11 
0.13 
0.37 
0.18 
0.47 
0.18 
0.58 
- 1.82 
1341.31 
-vk 
~ vk 
Sum of errors on each length sight. 
3.93 
+ 7.52 
20210.98 
■4 28.40 
49414.92 
lit ^ 
+ iAt 
Average error 
of a single sight on each distance. 
ttW 
TlVff 
it’ijs 
e k 
Wot 
8 fiVff 
At 
sk 
tAf 
sis 
At 
ttVit 
ttW 
tAf 
sh 
Errors of closing total distance on each length sight. 
"1“ TtsVlf 
1* 
! tAf 
- tfAt 
. EH 
vis 
+ tAf 
+ tAtt 
+ tAt 
+ fAf 
+ tAf 
+ At 
4~ Wcr 
-F tAft 
+’ Sslsi 
+ At 
+ WsTT 
+ ik 
+ fAf 
Sum of distance measured with each length sight. 
853.58 m. 
1097.40 m. 
1219.33 m: 
1829.04 m. 
2560.70 m. 
2560.68 m. 
3414. 
24 m. 
3017.94 m. 
3658.10 m. 
3688.59 m. 
4755.63 m. 
3962.94 m. 
5121.35 m. 
4115.37 m. 
' 5852.98 m. 
5182.32 m. 
6035.89 m. 
5212.80 m. 
5487.15 m. 
