Survey of Northeast Greenland. 
1. observation 
103 
4. observation 
log sin fn 9.9988 9.9948 
— cos @ 9.3595 9.3595 
— sin z 9.3583 9.3543 
— cotz 0.6301 0.6343 
logi,_, 0.6020 9.3010 2 016535 0.0000 
— icotz 1.2321 9.9325 1.2664 0.6343 
E W E W 
Biere timet0"........1.... | 19 4304 1950719 19756 21 20 02 42 
Ba ds pe NIEREN [ne 1.26 14 1 26 14 1 26 14 1 26 14 
RR | 18 1650 18 24 05 18 30 07 18 36 28 
= NlE ETEN | 274912" 30” | 276 01 15 | 277 31 45 | 279 07 00 
Argument Аг. table 331).... | 7.812323 7.967461 8.064100 8.146605 
RE Па АО | 0.628793 0.628793 0.628793 0.628793 
CUS р MES ee | 8.865597 9.020735 9.117374 9.199879 
АО. |: 8.317933 8.317933 8.317933 8.317933 
Albrecht table 33')........... | 28928 + 4048 + 5063 + 6116 
CE о. | 0.640474 0.640474 0.640474 0.640474 
ER EE PPT | 9.998827; | 9.997598, | 9.996240; 9.994479, 
ee RE ce | 8.960062: 8.960053n | 8.959710, | 8.959002; 
a A АЗ | 512437 | 5912742” | HEISE | ББ 
Horizontal readings .......... | 216 55 38 37 0030 | 216 55 20” 36 59 48 
evellcorrection =... ..:...... +17 + 1 + 19 IL «il 
MERE point : 2, +: 0.0, | 211 4310 31 47 49 211 4312 31 47 55 
Cairn V, horizontal readings.. | 210 0333 | 30 0257 | 210 0333 30 02 57 
Azimuthrof Cairn У... | --1°3937” | 1°44'52” | = 1°39'39” | + 1544759” 
Azimuth of Cairn У == --1°423 
1) Formeln und Hülfstafeln für geographische Ortsbestimmungen von Professor, Dr. Tx 
ALBRECHT, Leipzig 1894. 
A direct comparison of the results corresponding to “telescope 
east” or to “telescope west” shows that we might have been justified 
in giving the result in whole seconds; which fact we also intended 
to prove by means ol the six-placed calculation. The scale micro- 
scopes of the horizontal circle, however, only permitted the estimating 
in tenths of minutes, and in this we find the principal source of the 
otherwise unimportant deviations within the same position of the 
telescope. If the instrument had been provided with ordinary reading 
microscopes for the horizontal circle, we might undoubtedly have 
carried our accuracy as far as seconds. 
Determination of Time. 
The object of the determinations of time was twofold; they partly 
served to render an account of time, generally speaking, and partly 
made a link in the determination of longitude. The former or more 
