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Contributed by American Museum of Natural History Library.
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Transcription
A = 50° 2' b = 34°
a/b = tan A :. a = b tan A
log a = log b + log tan A
log b = 1.74448
log tan A: 10.0767
-----------------------------------
log a = 2.02118
a = 10^5
the square root of elevation -
5° 1/2 = miles of one
Latitude by Meridian Alt of star
Approximate Long. 70° W
alpha aquarii
Sextant + Artificial Horizon
Ther. 34 Bar 30 in 26. + 310
Observer South of Star.
Alt * 9° 59' 40"
2. C. + 3 10
---------------------------------
2) 9 2 30
45 31 25
Ref B30
3cor 34
-----------------------
- 59.5
45 30 25.5
90
-----------------------
Z. D.
Dcc.
Lat-
44 29 34.5 S
+6 19.75
---------------------------------
45 16 14 2 S