Survey of Northeast Greenland. 285 
в 87706'.1,Люа.себд: "77207 1.29616 
oz 15 07.4 — cos ......... 9.98469 
= @ 330.817 SIN ns et 8.79950 
a 4.08 21-91—1:cosec:405 7. 0.03173 
0.11207 
logtan "is a. 2... 0.05604 
EN ER 97°22' 
Horizontal circle 346 19 
Meridian point.. 248957” 
Peak №. 42... 231741 
Azimuth of Peak No. 42 S 62°44’ W 
The compass is read off in order to get an idea of the magnetic 
declination, which is here 153°.2 — 97°.1 = 56°.1 west. 
Control computation by the hour angle. 
logtand.. 9.54045 Тоба... 1.04163, 
— sect.. 1.04341, COS Me: 9.41120, 
log tan М. 0.57386, — cosec (ф — M). 0.43692, 
Me Se 104°56’.2 Тоба a... 0.889751 
ф- М... 21 26.9 Сов... 9721 
In the subsequent example from the same station, where the 
observation of azimuth was taken immediately after the midnight 
latitude and thus near the meridian, the hour angle, as a matter of 
course, gives a much more reliable result than the zenith distance; 
the latter may only serve as a very rough and ready control. 
Kap Bridgman, Midnight 15—16/V 1907. Determina- 
| 
tion of azimuth. Observer: Koch; Assistant: BERTELSEN; (; b = 
769 mm; Ё = + 15.3; ф = 83°29'.3; approximate clock correction to 
Grw.; Sgrw. = about + 1h30"; local correction == — 167275 ; one division 
of the level — 20”. Instrument placed on glare ice in the immediate 
vicinity of the coast. 
Telescope | Watch K MELDES: = | ere! Е | Do 
| | A N В. | 03. | ОБ. | circle 
ИЯ | 12h28m20s | 2820081 | 8.8 | 13.0 | 7.0 | 165939" 
Eights. 5: | 2939 | 77 521 | 626 | 28 | 84 | 166 00 
| | | | | 
| Peak No. 42| 274°599 | 60.3 | 13.5 | 6.5 | 44033 
I ТУ ВБ О RAT ie 
