Survey of Northeast Greenland. 
111 
an 57203 per eg Telesc. 57203 Ha 2 
| W | Е calculation W | E | calculation 
| | | | | 
Е | Polaris | 42 154 07 | WwW Polaris | 15.9 4.9 1.0.90 
| 21629048 |13.9| 28| . 108 2m57m26s | 81 141 | 089 
7 Pegasi 128| 1.7! . 143 7 Piscium | 2.9 | 15.8 + 0.88 
| | 4.5 | 157 | | Мой 
| 2130 197 | 21 30 5476 | 22 04 018 |`22 04 32.55 
37.0 | 54.68 | 172 32.82 
55.0 55.00 | 29.0 32.72 
59.2 54.92 32.9 | 32.90 
| 31 129 54.93 47.7 32.33 
30.1 5473 | 05 03.7 33.21 
| mean 21 30 54.84 | mean 22 04 32.76 
W | Polaris 15.1 40 | 085 | E Polaris | 43/1153). sg 
| 21 35 43 22 135 en | 22 08 10 |142| 31|° оз 
| 18 129 Be 1385| 25 | ee. 
| м Pegasi |15.5| 4.6 | | x Piscium | 4.9 15.9 
| 21 37 98.6 | 21 38 2.25 | 22 12 470 | 22 3 178 
| 45.0 2.09 | 18 024 17.75 
| 58.1 | 198 | 17.9 | 17.90 
38 02.1 210 | 215 | 17.78 
18.9 Seen | 33.3 | 17.70 
35.8 1.94 | 488 | 18.09 
mean PAL 38 02.07 mean 2 ME 17.78 
The carrying out of the observation is as follows: 
1. Aboutanhourbeforetheobservationtheinstrumentis madeready. 
Everything of the nature of grease is wiped off the pivots and 
the V's with spirit; the verification of the instrument is tested. 
2, Comparison of watches. The watch used for observations is 
taken into the open air and placed in a glass bowl with a closely 
fitting cover (see рр. 96—97). 
3. The observer goes to the Observatory a couple of minutes 
before the beginning of the observation. 
a. Polaris is observed on the middle thread. The watch is read 
off. The striding level is read off, reversed and read off once more. 
Whenever the level is reversed, the feet of the latter are wiped with 
a piece of chamois leather. 
b. The clamp of the vertical circle is loosened — care must be 
taken not to touch the clamp and the slow moving screw of the 
horizontal circle — and the telescope is directed towards the previously 
computed zenith distance of the equatorial star (for y Pegasi here 
47°.1). The vertical circle is clamped. 
When the equatorial star appears within the field, the direction 
of the telescope in altitude is improved with the slow moving screw, 
XLVI. 8 
