NO. 6.| OBSERVATIONS TAKEN AT THE WINTER HUT. 127 
Vert. Circle ||’ N. Lat. dy 
Watch I | 
—y) =81 75 + 0.103 
= 118 + 0.096 
= 11.0 — 0.003 
)= 11.0 — 0,008 
= 118 — 0.018 
= 102 — 0.017 
“Horns of the Moon indistinct in the telescope, observations therefore less accurate.” 
The last four observations give « + y=-+ 1'4 and # — y= — 01.5. 
The mean result is 81° 10°6 or, with omission of the first, 81° 11. If the longitude 
following from the lunar distances below be used, which would give Greenwich Time 5 minutes 
greater than that used above, the change in the Moon’s coordinates would give the latitude 048 
smaller. 
Inmar Distances. Sun and Moon, inner limbs. Ind. corr. + 5'4. 
Watch I Sextant Gr. M. T. | I—Gr. 
hemes e ‘ hm is hemes 
5 31 10 pm Distance 84 285 1A AS 4 29 57 
ay G35 LAI) ee 84 38 tin St 0 32 40 
626) (0) 2 8 56 «|| 1 58 26 Q7 34 
6 36 0 ” 8 0 |2°7 6 98 45 
The mean is 4b 29m 44s, which, with the correction to local time found aboye, — 53™ 35s, 
gives the East Longitude 3h 386m 9s = 54° 2’, but this result is rather uncertain, as will be seen 
from the numbers in the last column. In order to get the longitude assumed above, it must 
however be supposed that all the distances haye been measured too small. 
Magnetic Declination. 
Watch I Compass | Sun’s Az. Decl. 
hm i s ° ° ° ° 
7 51 50 pm Sun Centre S86 N85 || S 106.5 W 21.0 E 
59 16 TBD Gl 2 BAIA A083) 2 23.4 
| 
“Needle very unsteady.” 
If the declination had been constant during the observations, the decreasing numbers on 
the compass would show that the angle between the north end of the needle and the Sun’s 
vertical plane had been less than 90°, which would give the declination 12°.0 E and 13°.2 E 
respectively (see explanation p. 70). But it is apparent, from a computation made by the observer, 
that the reading on the compass has been on the other side of 90°, which gives the values in 
the last column. The result is at all events uncertain, owing to the unsteadiness of the needle. 
1896, April 27. Cireum-meridian altitudes of the Sun. Bar. 758.5 mm, Temp. — 13°.8 C. 
Assumed Hor. Point 89° 53’, including the correction to the Sun’s semidiameter, which is 
eliminated from the mean result. Watch assumed 52™ 0s in advance of apparent time (deduced 
from the preceding and the following determination of local time). 
