14 



tant, paa givet Signal, en Iagttager Vinkelen mellein Medet 

 og Toppen, og en anden Iagttager Toppens Højde over 

 Horizonten. Resultatet af Beredningen var 1945 Meter. 



Om Ettermiddagen loddedes 340 Favne udenfor Syd- 

 ostkap. Kursen sattes nu nordover. Taagen begyndte at 

 omhylle Beerenberg og vi saa dens Top og Skuldre for 

 sidste Gang. I Nordost for Nordostkap, 7 Kvartmil af, 

 fandtes en Dybde af 1040 Favne. Dette giver en midlere 

 Heldning af Havbunden udenfor Nordostkap af 8 Grader, 

 hvilket er noget brattere end Heldningen af Beerenbergs 

 Basis henimod Nordostkap (efter Kartet 6.° 6), men mindre 

 brat end Heldningen mod Sydostkap (10°). Paa Skraanin- 

 gen ned mod Nordostkap . saaes en Eruptionskegle (Krater 

 Sårs), som tindes i ældre Tegninger, naar man ser nøje 

 efter. saaledes i Vogfs Rejse og paa Lieutenant Rings 

 Tegning Fig, 7. Paa Nordsiden af Øen saaes de 3 Is- 

 bræer trædende frem af dybe Dale foran den bratte, 60° 

 heldende, 300 Meter høje Fjeldvæg, Fig. 5. Hvad der laa 

 højere, var dækket af Skylaget. Vi fik saaledes desværre 

 ikke se Beerenberg og dens Grundstykke fra Nordsiden, og 

 de store Bræers Udspring fra Snegrændsen gik ligeledes 

 vor Iagttagelse forbi, da Taagen efterhaanden sænkede sig. 



Efter at have tåget en Række Lodskud i Nord og 

 Nordvest for Jan Mayen, og fundet over 1000 Favnes Dyb 

 paa vort vestligste Punkt, hvor Luftens Temperatur om 

 Natten var kun lidt over Frysepunktet, men ingen Is var 

 at se. styredes tilbage mod Øens Vestside. Da vi om For- 

 middagen den 3die August nærmede os Mary Muss Bugten, 

 var Vejret fremdeles meget taaget. Vi styrede videre langs 

 Landet sydvestover og spejdede opmerksomt efter en Lej- 

 lighed til at komme i Land paa Sydlnndet. men forgjæves. 

 Ofte tog Taagen Udsigten til Land ganske bort, og overalt 

 saa vi Brændingen paa Stranden lige sterk som da vi for- 

 gjæves provede at lande paa Østsiden. Vi stoppede paa et 

 Par Stationer og loddede — se Kartet — 98 og 156 Favne. 

 Fra disse Stationer og fra flere andre Punkter fik vi gode 

 Skitser af enkelte Partier af de lavere Dele af Sydlandet. 

 Efter disse er saaledes Fig. 6 gjengivet. Man ser den 

 regelmæssige Eruptionskegle Høyberg ude mod Stranden. 

 Langere inde. ved Guinea Bugten. dukker et lidet. men 

 meget regelmæssigt kegleformigt Krater (Høsaaten) op af 

 Lavlandet. Den lave Sydpynt vender lige mod Tilskueren. 

 Bagenfor det foranliggende Lavland loffer sig med bratte 



Vægge Svellandets Hojfjeld. ( Ippe paa dette sees et kegle- 



formel Kjeld (Krater Vøringen), et Krater efter al Sand- 

 synlighed. De bratte Styrtninger mod Havet fortsætte 

 lige til Cap Sydvest. Her er en naturlig Port i Fjeldet, 

 gjennem hvilken Havet gaar. Udenfor Nesset sees de Syv 

 Klipper med sine fantastiske Former. 



speed of the ship being read off every five. minutes on the 

 scale of the water-log. At the beginning and the end of 

 this interval, at a given signal, one observer measured with 

 the sextant the angle subtending between the bearing and 

 the summit of the mountain. and another the height of the 

 summit above the horizon. The result of the computation 

 was (1380 feet. 



lu the afternoon we sounded in 340 fathoms ofl' Cape 

 South-East. and then steered northward. Clouds had now 

 begun to gather round Beerenberg, and we had our last 

 view of the summit and upper part of the mountain. North- 

 east of Cape North-East. 7 miles from land. the depth was 

 1040 fathoms. This shows a mean incline of the sea-bed 

 off Cape North-East of 8 degrees, which slightly exceeds 

 that of the base of Mount Beerenberg towards Cape North- 

 East (according to the Map 6.°6), hut is somewhat less 

 than the slope towards Cape South-East (10°). On the 

 north-eastern declivity was seen a parasitic cone(Sars's crater), 

 which may be found in earlier views of the island if care- 

 fully looked for. for instance in a prospect in Vogts Tra- 

 vels, arid in one by Lieutenant Ring, Fig. 7. On the north 

 side of the island the 3 glaciers could be seen jutting out from 

 deep valleys beyond the precipitous mountain-wall. which 

 is here 900 feet high and shelves at an angle of 60°, Fig. 5. 

 Whatever lav at a greater elevation was wrapped in clouds. 

 Unfortunately, therefore, we got no view of Mount Beeren- 

 berg from the north side of the island. and the -origin of 

 the glaciers at the snow-limit likewise escaped our obser- 

 vation, the fog baving gradually descended. ' 



After having tåken a series of soundings. to the north 

 and north-west of Jan Mayen, and found a depth of more 

 than a thousand fathoms at the most westerly station. 

 where the temperature of the atmosphere at night was only 

 a little above the freezing-point. though no ice was to be 

 seen, we steamed back to the west side of the island. In 

 the foreuoon of August the 3rd. when bearing down on 

 Mary Muss Bay. the weather was exceedingly foggy. We 

 steered thence in a south-westerlv direction along the coast. 

 carefully watching for an opportunity to land. — hut in vain. 

 The fog frequently shut out the land; and a line of break- 

 ers was everywhere observed along the shore. the swell 

 being no less heavy than on the occasion of our unsuccess- 

 full attempt to land on the east side of the island. We 

 stopped twice and sounded (see Map) in 98 and 156 

 fathoms. At these stations and several other points we 

 succeeded in sketching the scenery of the low-lying tract 

 in the southern part of .lan Mayen. Fig. 6 is from these 

 - sketches. Near the shore we sec the parasitic crater Hoy- 

 berg; and farther inland. in the vicinity of Guinea Bay. a 

 conical crater. — the "hay-cock," — small hut regular in 

 form, rises from the low-lying tract around it. The Low 

 South Point projects in a line with the point of view. 

 Behind the low tract in the foreground of the engraving. 

 towers with its precipitous walls the plateau of the south- 

 ern part of dan Mayen. Here may be seen a conical- 

 shaped mount (the \ (ilingen crater). in all probability of 



