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Bn sandsynlig constant Fejl. af 10" i alle Hojder
bevirker en Fejl af 11. "6 i den beregnede Bredde og af
0.’90 i den beregnede Lsengde. Resultatet bliver saaledes
<P = 78° 14' 48. "4 ± 11."6
l - 15° 33' 58."5 ± 16. 7 = 1;‘ 2™ 15/9 ± 1/11
I Kgl. Svenska Vetenskaps-Akademiens Handlingar,
13de Bind No. 9. Andes en Afbandling af Dr. Aug. Wij-
kander: “Astronomiska Observationer under den Svenska
Arktiska Expeditionen 1872—-73. I. Tids- och Orts-Be-
stamningar.” I Fortegnelsen over Bredder og Lrengder
Andes lier, Side 54. ogsaa Punlcter ved Advent Baj, nem-
lig “Rysstugen” og “Mynningen af elfven”, begge bestemte
efter Observationer af Prof. Nordenskiold.
Yed Hjelp af det af Capt. Wille tegnede Kart over
Advent Baj kau jeg med Letlied reducere mine Bestem-
melser for Odden til de to nsevnte Punkter. Jeg Ander
“Odden” Br. 78° 14' 48. "4 L. 1* 15/92
Red. til “Russestuen” - - 1. 9 -2.31
Russestuen 78 14 46. 5 1 2 13.61
do. efter Svenskerne 78 15 2. 1 2 31.5
Forskjel — 15/ "5 — 17* 9.
Red. t. “Mund. af Elven” 29. "5 2/85
Mund. af Elven 78° 14' 18. 9 1" 2 m 13.07
do. efter Sv. Exp. 78 14 11. 1 2 31.0
Forskjel + 7/ "9 — 17/ 9
A probable constant error of 10" in all the altitudes,
will entail an error of 11. "6 in the computed latitudes and
of 0/90 in the computed longitude. The result is thus —
• cp - 78” 14' 48."4 ± 11."6
l = 15° 33' 58."5 + 16."7 = F‘ 2m 15/9 ± 1/11
In Kgl. Svenska Vetenskaps-Akademiens Handlingar,
Vol. 13. No. 9, Dr. Aug. Wijkander has furnished a paper
entitled “Astronomiska Observationer under den Svenska
Arktiska Expeditionen 1872—1873. I. Tids- och Orts-Be-
stamningar.” The List of Latitudes and Longitudes, p.
54. includes those of two points at Advent Bay, viz.
“Rysstugen” and “Mynningen of elfven,” both determined
from the observations of Professor'Nordenskiold. '
By referring to Capt. Wille's map of Advent Bay, I
could easily reduce my determinations for the tongue of
land to those of the Swedish observer for the two points.
The results were as follows: —
Tongue of land Lat. 78° 14' 48/4 Long. V‘ 2m 15/92
Red. to “Russian Hut” — — 1.9 — — 2.31
Russian Hut 78 14 46.5 1 2. 13.61
Do, Swed. Observ. 78 15 2 1 2 31.5
Difference — 15. "5 17/ 9
Red. to “Mouth of River” 29."5 2/85
Mouth of River 78° 14' 18. "9 F‘ 2’" 13/07
Do. Swed. Observ. 78 14 11 1 2 31.0
Difference 4_ 7. "9 — 17/ 9
Medens Bredderne stemme, i Middel, indenfor den
af den sandsynlige Fejl betegnede Graendse, ere de Svenske
Expeditioners Lsengder c. 18’ mere ostlige end mine. Da
Ltengden af Punkterne ved Advent Bay af Svenskerne er
henfort til Laengden af Sabine's Observatorium paa Indre
Norskoen, og der— som af Dr. Wijkander i literate Af-
handling Side 48—49 fremhsevet, — er Aere Grunde til-
stede, der gjore det sandsynligt, at Sabine’s Lamgde er
for stor ostlig, 16 til 30 Tidssecunder. saa tor jeg anse
den af mig fundne 'Lamgde for Advent Baj for at vsere
liter den rigtige. og de 18 Tidssecunders Forskjel fra de
Svenske Expeditioners som Correction til Sabines Lsengde
af Obseryatoriet paa Indre Norskoen.
Whilst the mean of the latitudes agrees within the
limits of the probable error, the longitudes determined on
the Swedish Expeditions are about 18' farther east than
mine. The longitude of the points at Advent Bay being
referred by the Swedish observers to the longitude of Sa-
bine's Observatory on “Inner Norway Island,” and several
reasons — as adduced by Dr. Wijkander in the above-
mentioned paper, pp. 48, 49, — rendering it highly pro-
bable that Sabine’s longitude is too far east, — from 16
to 30 seconds in time, -— I may regard my longitude for
Advent Bay as very nearly correct, and the 18 seconds in
time by which it differs from that determined on the
Swedish Expeditions, as a correction for Sabine’s longitude
of the Observatory on Inner Norway Island.
9. Jan Mayen.
Den 30te Juli 1877. om Eftermiddagen, da “Vorin-
gen" befandt sig i Mary Muss Bugten paa Vestsiden af
Jan Mayen, brod i korte Stunder Solen igjennem Taagen.
og der observeredes to Solhojder. netop som vi lettede fra
Ankerpladsen.
9. Jan Mayen.
In the afternoon of the 30th of July, 1877, — the
“Voringen” lying at anchor in Mary Muss Bay on the
west coast of Jan Mayen. — the sun broke at intervals
through the mist, and two solar altitudes were taken, jiist
as we were getting under weigh.
3*
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