78 British Antarctic Expedition. 
carefully observed with artificial horizon, with 6j 
inch sextant, using reversing telescope. Approximate 
lat. 66^ 45' S. long. 165^ 26.8, Boome 26.752 
SAVIO TRAVELLING WITH INDIAN GEAR. 
inch. Att. ther. 50°°3. Temperature of am OMS 
Fahr. Sun's upper limb observed. Index error of 
sextant (on and off arc) — 5' 1o". 
Double altitude. . ~ 82° 8 10° С. М.Т. by Chron. 13 — 13— 37. 
Indessonnon = БОТО 
82 3 © 
AT T30 Apparent alt. of upper limb. 
= 16 15'4 Semi-diameter of. 
6 
6 Mean refraction. 
Jo. Con. ton temp. о аше 
7 Corr. for height of barometer. 
3 
+ 6:60 Paralax 
до 44 17:9 ‘True alt. of sun’s centre. 
