- Project Runeberg -  Den Norske Nordhavs-expedition 1876-1878 / The Norwegian North-Atlantic Expedition 1876-1878 / 1. Bind /
13

(1880-1901) [MARC]
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skabelige Medlemmer en Generalberetning til Bestyrelsen.
§

De Samlinger af . videnskabelige Iagttagelser og
Naturalier, som Expeditionen tilvejebringer, forblive denne
tilhørende, indtil de efter Bestemmelse af Expeditionen
videnskabelige Medlemmer ere bearbejdede. Publikationen
af de gjorte Iagttagelser samt deres Resultater’ og
Fordelingen af de indsamlede .Naturalier bestemmes af
Bestyrelsen efter Forslag af de videnskabelige Medlemmer.

For hvert Aars Togt udarbejdedes af Expeditionen
Medlemmer i Forbindelse med Opmaalingsdirectionen |
General Grimsgaard. Fyrdirektør Diriks og Professor Mohn) en
Arbejdsplan, der indsendtes til Departementet for det Indre
til Approbation.

1876.

Deia for føtte Aar approberede Plan var følgende:

Saasnart Expeditionsfartøjet i Bergen har modtaget
sin falde Udrustning og de Instrumenter og Apparater,
der skulle have sin Plads ombord, ere anbragte, kunne de
Iagttagelser begynde, der ere nødvendige for Bestemmelsen
af de forskjellige magnetiske Constanter ved Skibet og de
.respective Instrumenter.

Da saadanne Iagttagelser bør foretages paa et Sted.
der er saavidt muligt frit for den saakaldte magnetiske
Lo-calattraction, og da Erfaringen fra "Hansteens" Togt i
1875 har vist, at .man ikke kan gjøre Regning paa at
blive fri for denne Virkning, førend man kommer ud paa
de yderste Øer og Skjær paa Kysten, ville de nævnte
Iagttagelser ikke kunne udføres med Fordel i Bergen.

Af Resultaterne af "Hansteens" Togt i 1875
fremgaar det. at Øerne Utvær., og navnlig Husø ved
Sognetjordens Munding har den forønskede Frihed for
Localat-traction. Paa dette Sted ville derfor de forberedende
magnetiske Iagttagelser antagelig bedst blive at udføre. Hvor
lang Tid disse Iagttagelser ville tage. beror paa
Vejrforholdene, navnlig fordi der til enkelte af dem kræves Sol
til en bestemt Dagstid.

Da en Flerhed af de Instrumenter og Apparater,
hvormed Expeditionen vil have at arbejde, paa denne komme
til Anvendelse under Forhold, der paa Grund af
Foretagendets større Maalestok og Udrustningens større
Fuldstændighed ere Expeditionen Deltagere delvis nve. og da
Mandskabet) trænger til Opøvelse i de for de
videnskabelige Operationer nødvendige Manøvrer, ansees det for mest
hensigtsmæssigt og i Længden mest tidsbesparende at
foretage foreløbige Forsøg til Øvelse med samtlige de under
Expeditionen benyttende Apparater.

En udmerket Lejlighed til den første Prøve, der
tillader Operationerne at foregaa i smult Vand paa samme

ended, the members of the Scientific Staff shall send in a

General Report to the Managing Committee.

§

The observations instituted and natural objects
collected shall belong to the Expedition till such time as,
with the approbation of the Scientific Staff, they have been
duly worked out and described. The publication of the
observations and their results, and the distribution of the
natural objects, to devolve on the Directors of the
Geographical Survey, and to be in accordance with the
proposition of the Scientific Staff.

For each cruise the members of the Scientific Staff,
in conjunction with the Directors of the Geographical
Survey (General Grimsgaard. F. Diriks. Director of
Lighthouses. and Professor Mohn), drew up a Scheme of Work,
which was laid before the Home Department for approval.

1876.

The .Scheme approved for this vear was as follows: —

When the vessel selected for the Expedition,
now-lying in the port of Bergen, has been fully equipped, and
the instruments and apparatus with which she is to be
furnished have been arranged on board, the observations
necessary to determine the magnetic constants for the ship
and the -respective instruments mav forthwith commence.

As such observations should be taken in a spot as
nearly as possible free from the so-called magnetic local
attraction, and the cruise of the "Hansteen" in 1875 having
shown that this disturbing intluence does not cease to be
felt at a less distance from the coast than the outermost
islands and skerries, the said observations cannot give
satisfactory results if made in Bergen.

From observations instituted oil the cruise of the
"Hansteen"’ in 1875. it appears that the islands of Utvær,
and more especially the island of Husø at the entrance
to the Sognetjord, are well nigh uninfluenced by local
attraction. On the latter island, therefore, it will be best
to undertake the preliminary magnetic observations. What
time will be required to complete these observations, must
depend on the state of the weather, particularly since
sunshine at a certain hour of the day is indispensable for
some of them.

As very mauy of the instruments and appliances
necessary for the Expedition, will have to be used under
conditions which, by reason of the comparatively extensive
scale whereon the Expedition has been planned, and the
relative completeness of equipment, are in several respects
new to the members of the Expedition: and the crew
needing practice for the work connected with the scientific
operations, it is deemed advisable, and will in the long run
be the surest means of saving time, to make preliminary
excursions, or trial-trips, with a view to acquire experience
in handling the apparatus.

An excellent locality to begin with, that would admit
of carrying on the operations both in smooth water and

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