275 
Survey of Northeast Greenland. 
= 77°28'45”; approximate correction to Grw. $ = + 2518™. Instru- 
ment placed on a moraine, in the immediate vicinity of the depot. 
Telescope left Telescope right 
| Vernier | Level Vernier Level 
Watch K | Watch К | 
| Å B Obs. | Obj. | A B Obs. | Obj. 
5h12m11s | 289°39.0 | 39’.1 | 11.9 | 6.9 | 5h13m10s | 70°41°.2 | 417.8 | 6.3 | 11,3 
О 14 16 320 | 323 | 117 | | ©: 15.19 48.2 | 48.9 | 6:02 О 
© 16 12 | 289°57'.8 | 57.8 | 113 | 6.5 | 01712 | 70922 .2 | 229 | 6.0 | 110 
18 00 52.0 | 52.1 | 11.0 | 6.0 18 59 28.2 | 290 || 5.0 | 10.0 
After grouping the observations in pairs the below table is made. 
© D 
I Il | nr. IV 
Clock time K.... | 5hl2m35s5) 5hl4m47s5) 5516428 | 5h18m298.5 
Correction to Grw. |+2 18 + 2 18 [2018 + 2 18 
Mean time at Grw. | 7h,51 7h.55 7h.58 74.61 
Read arte | 10°31'14” 7093812”| 701223” | 1091811" 
Levels uns... ke — 6 | + Tot 5 | -b 12 
Refraction ...... es anne ORL ct 247 Е 248 
re beh НЫ note loot г Baal) > 1540 
Geocentric z..... 70°18'13”| 70°25'13”| 70°30'56” | 70°36’58” 
ВОИНЫ 20 36 57 20 3659 | 20 3700 20 3701 
BE Те 17 2845 | 77 2845 77 2845 77 2845 
DAT Sa PT ES 168 2355 | 168 3057 | 168 3641 | 168 4244 
ERT AEG 84°11’58” | 84°15'29”| 84°18’20”| 8402122” 
Be FR: NE Я 13 5345 13 5015 13 4724 13 44 24 
ое 63 35 01 63 38 30 63 4120 63 4421 
ВЕ 6 4313 6 46 44 6 4935 6 5237 
log зесо......... 0.99540 0.99977 1.00338 1.00725 
(er) 0.01290 0.01279 0.01270 0.01261 
— sin(o + 6) 9.95211 9.95232 9.95250 9.95269 
Be 19g 225) 9.06825 9.07202 9.07504 | 9.07823 
| 0.02866 0.03690 0.04362 |  0.05078 
log tan !ist....... | 0.01433 0.01845 0.02181 | 0.02539 
ran | 910534 |. 920960 92°52'.6. | . 93°21'.0 
— | 6hO7m34s | 68090445 | 681112308 6h13m94s 
Equation of time. |= 3 28 |+ 3 28 |: 3 28 + 3 28 
Mean time ...... 6 04 06 6 06 16 6 03 02 | 609 56 
Clock time ...... | 512 36 5 14 48 | 516 42 | ‘518 30 
Correction ....... |+ 61,80 |+ 51 28 |+ 51.20 |+ 51 26 
As a mean we get the correction 
+. 51M26$ with a mean error 
which may be estimated at above four seconds (about 400 metres). 
