112 GEELMUYDEN. ASTRONOMICAL OBSERVATIONS. [NORW. POL. EXP. 
In order to obtain the longitude of the Winter Hut, which was most probable according to 
the Lunar Distances and the observations taken the next year, it has been supposed that the 
mean daily rate of I during the whole summer was 12s fast. For the days April 8—13 the 
gain is included in the change by stopping given above. Applying also the other changes, 
the following table was formed, containing the computed error of I to Greenwich Mean Time 
for the times of observation, exclusive of the meridian altitudes. The value for March 14 was 
found by comparison with chronometer Hohwii. 
NN ———————— 
| 
1895 Guat: I—Gr. 1895 Gr. T. I—Gr. 
h hm is h beans 
Mar. 14 | 2.3 am 0 49 0 June 27 | 10.0 am 0 16 2 —J4 
25 | 6.2 am 0 51 14 
Apr. 2 | 11.5 am 0 52 52 July 1/]105am}] —0 11 3-24 
4 1.0 am 0 53 11 23pm] —O0 ii 1-4 
8 1.7 am 0 53 59 20 | 35am] —0O 7 18 —4 
Aug. 1 26pm}|—0O 4 483-4 
Apr. 13 | 24am] —0 38 31 —Z |. 9 | 84am|—0O 3 15-4 
18 | 04am | —0 2 31 —4 21 pm| —0O 3 12-4 
10 | 75 pm| —0 2 57-4 
Apr. 26 | 2.0 pm | —2 19 55 —4 16 | 94am} —0O 1 50-4 
May 5 | 25am | —2 18 13-4 17 | 57am] —0O 1 40 -dZ 
19 | 24pm | —0 1 12-4 
May 9 1.3 pm 3 21 12 —J 20 |100am | —0 1 2-4 
15 1.7 am 3 22 18 —4 28 | 88 am 0 0 33-4 
MW | 05 pm 3 24 12 —A 
June 4 | 2.0 am 3 26 18 — J || It was not considered necessary to draw 
14 9.0 am 3 28 22 — J || upa similar table for Watch I, for which 
2.0 pm 3 28 94 — 4 || the difference I—II may be employed on 
29 | 3.1 pm 3 30 1 —~ || the few occasions on which it was used. 
The quantity / will in course of time include the accumulated errors of the assumed rate, 
but the numbers obtained on putting 7 =0 may safely be employed for taking the coordinates 
out of the ephemeris. 
Among the observations given in the following pages are included the readings of barometer 
and thermometer, necessary for refraction. They were often noted some hours before or after 
the astronomical observations, but the daily variation of temperature being slight, the difference 
is of no importance. The expedition had two aneroid barometers; one by Hicks, giving English 
inches, was used in the beginning, the other by Cary, giving millimeters, after May 15, 1895. A 
series of comparisons with the normal barometer on board, made by Lieut. Scott-Hansen in 
February, 1895, gave the following corrections: 
Correction to Hicks = — 0.07 in. = — 1.7 mm. 
Correction to Cary =-+5.3 mm. 
On the arrival at Cape Flora in 1896 the comparisons with Mr. Jackson’s barometer gave 
a somewhat greater correction to Cary, but the difference is of no importance for the present 
purpose. Hicks had then a very large correction, probably owing to a shock on May 30, 1895. 
The uncorrected numbers are given in the following pages. 
Local Mean Time is abbreviated to LT. 
The point of departure on March 14 was N. Lat. 84° 4’ and E. Long. 101° 33'; LT—-I = 
5h 57m 12s, LT—I] = 6b 7m 63; Magnetic Declination 42° E. During the first days the course 
was set nearly due north, or sometimes a little easterly; even without this a deviation in that 
