50 



vel gjehgivet i Plancherne til G-aimards Etejse med "la 

 Recherche". Vort Billede, der viser Sydsidens Bræer, er 

 tåget fra den fremspringende Landtunge " Begra velsesplad- 

 sen". 1 Forgrunden sees, hvorledes det ser nd paa en 

 Campo santo paa Spidsbergen. Til Venstre se vi Land- 

 tungen, der forbinder Begravelsespladsen med Land, og 

 udenfor denne den saakaldte Gully's Glacier. Dennes Ende 

 hviler for en stor Del paa Fjæren, langs hvilken jeg pas- 

 serede foran den. men i Midten gaar Bræen ud i Havet 

 og her løsner stadig Stykker af den. Jeg blev Vidne til 

 et saadant Skuespil. En hoj Issojle loste sig med et Brag 

 fra Bræens yderste Væg. Den heldede adover og begyndte 

 sit Fald med en svingende Bevægelse, støttet paa sin un- 

 derste Ende. Jeg ventede at se den falde med hele sin 

 Sideflade i Våndet, men dette skede ikke. Da den havde 

 svunget udåd en 3U Grader fra Verticalen, sank hele Is- 

 søjlen med Et sammen med en gjennemgaaende Vertical- 

 bevægelse, knustes og strøedes som mindre Stykker over 

 Soen. der ved Faldet sattes i sterk Bølgegang. — Jeg var 

 oppe paa Bræen paa dens Nordside; den var ilden større 

 Sprækker og havde en meget jevn Overflade. 



I det indre Basin af Magdalena Bay gjenfandt jeg de 



af Charles Martins i 1839 maalte lave Dybtemperaturer. 

 Bundteinperaturen var her — 2.°1, den laveste Temperatur 

 i Havet, jeg havde fundet paa hele vor Expedition. Og 

 lier var et riet arctiskt Dyreliv. 



Fra den 19de. til den 22de August laa Expeditionen 

 tilankers i Advent Bay. Isfjorden, Spidsbergen, medens 

 Maskinen eftersaaes. Denne Anledning benyttede Gapt. 

 Wille til at optage et noiagtigt Kart over Advent Bay. 

 der ofte besøges af norske Fangstfartøyer. Ettermiddagen 

 den 19de benyttedes til en Recognoscering, og der opsattes 

 nogle Signaler. Den 20de om Morgenen tog jeg paa Odden 

 (Basis A) en Række Solhøjder. (Se H. Mohn. Astrono- 

 miske Observationer Side 19). En Grundlinie blev udstuk- 

 ket og merket med Teltpinde paa det flade og jevne Terræn 

 langs Stranden. Grundlinien er i Kartet optrukket mellem 

 Punkterne A og B. Horizontalvinklerne til de nærmeste 

 Signaler maaltes med Theodolit; Ved Middagstid bestemtes 

 Azimut af Linien A C med Theodolit og Solen af Gapt. 

 Wille og mig i Forening. Derpaa tik jeg atter nogle Sol- 

 hojder. Om Eftermiddagen rejste Gapt. AVille med Baad 

 rundt den indre Del af Bugten og maalte med Sextant 

 Horizontalvinklerne mellem de opsatte Signaler. Samtidig 

 hermed maalte jeg Grundlinieus Lrengde. Jeg benyttede 

 hertil 3 Træstænger, af tilsammen 9.112 Meters Længde, 

 ret afskaarne fqr Enderne. Disse lagdes af mine Assisten- 

 ter, Baadsmanden og en Matros, fra Basis B af paa Jorden, 



mirably rendered in the Plates annexed to Gaimard^ 

 voyage with "la Recherche." Our view of the glaciers of 

 the south-coast is tåken from the tongue of land termed 

 "the burial ground." In the foreground. we have the 

 aspect of a GampO Santo on Spitzbergen. To the lett 

 stretchés the isthmus connecting the burial-ground with the 

 main land. aud off the former rises the so-called Gull/s 

 Glacier. The terminal portion of this glacier rests in 

 greater part on the beach, along which I strolled below it; 

 hut the middle section prbjects into the sea, and here large 

 fragments are continually breaking <>tf. I was myself 

 a witness of this gradual dismemberment. A lofty column 

 of ice parted with a loud crash from the outerwaH of the 

 glacier. Supported at its lower end, the fall commenced 

 with a slow. swaying movement. I expected to see it strike 

 the water with the whole of its lateral surface, hut in this 

 was mistaken; having swung some 30 degrees out of the 

 perpendicular, the entire column suddenly collapsed, taking 

 a well-nigh vertical direction, and was smashed to pieceSj 

 the fragments being scattered over the sea. which became 

 violentlj agitated by the shock. I had ascended the gla- 

 cier from the north side: its surface was remarkably even 

 and exhibited no considerable fissures. 



In the inner basin of Magdalena Bay I observed the 

 low deep-sea temperatures found by Charles Martins in 

 1839. The bottom-temperature was — -2.°] G., the low- 

 est temperature I at any time observed in the water of 

 the sea on the cruises of the Expedition. And yet these 

 depths disclosed an abundance of animal lite. 



From the 19th to the 22nd of August, the -Vorin- 

 gen" lav at anchor in Advent Bay. Ice Sound. Spitzbergen. 

 her engines having to be cleaned and examined. Gapt. 

 Wille took advantage of this opportunity to construct a map 

 of Advent Bay. a locality which is freqnéntly visited by 

 Norwegian fishing vessels. The afternoon of the 19th was 

 devoted to reconnoitring in the vicinity of the Bay. and a few 

 signals were erected. On the morning of the 20th, I took 

 from the tongue of land (Base A) a series of solar altitudes 

 (See H. Mohn. Astronomical Observations. p. 19). A hase 

 line was marked out with tent-pegs along the flat, beachy 

 strand. On the Map. the base line extends between the 

 points A and B. About uoon. Capt. Wille and myself 

 determined with the theodolite the azimuth of the line AG 

 by the sun. I then succeeded in taking another series of 

 solar altitudes. In the afternoon. Capt. Wille rowed round 

 the inner shore of the Bay. and measured with the sextant 

 the horizontal angles between the signals. Whilst he was 

 thus engaged, I measured the length of the base line. For 

 this purpose. I made use of three wooden rods. cut straight 

 off at the ends, measuring together 9.112 metres. These 

 rods were placed on the ground by my two assistants. the 



