en ai de følgende Dage saaes klart fra Øens Østside. Ved 

 at stige op saa hojt som Tangen tilleid mig (175 Meter), 

 fandt jeg Keglen bestaaendé af lutter lose. udkastéde, af- 

 rundede rode Stene samt sort Aske. 



Ved Opstigningen fra Mary Muss Bugten naaede jeg, 

 tnellem Fugleberget og de to nævnte Kratere, meget snart 

 op til Højderyggen af Øen, der her er paa sit laveste og 

 smaleste. Fast lysgraa Lava. jevnlig blæret i Overriaden, 

 dannede lier Bergarten. Denne er. ifølge en senere Un- 

 dersøgelse, 1 i meget ringe Grad, næsten umerkelig, mag- 

 netisk, medens m tættere, mørkere Lava, med indesluttede 

 større Krystaller af indtil tiere Millimeters Gjennemsnit og 

 at' basaltisk Udseende, der fandtes paa flere Steder, er 

 tydelig polar magnetisk. Det laveste Parti af denne Hojde- 

 r\ g fandtes eiter Maaling med Aneroidbarometer at være 

 66 Meter. Højderyggen afluttedes paa den anden Side, 

 mod Sydost, af en brat Styrtning. Under denne laa et 

 udstrakt lavt Forland, der danner den indre Begrændsning 

 af den lange, østlige Lagune. Mod Øst saaes fra Højden 



its summit shrouded in mist. of which however we got on 

 one of the following days an excellent view trom the east 

 side of the island. On clambering 1 up as far as the fog 

 would admit (570 feet), 1 found the cone to be exclusively- 

 composed of reddish. rounded, cindery stones ejected from 

 the crater. and ashes. 



Making the ascent from Mary Muss Bay, I soon 

 reached — between Fugleberg and the two above-mentioned 

 craters — the chief mountain ridge of the island. where 

 its breadth and altitude are least. Here, compact light- 

 grey lava, cellular at the surface, constitutes the outer 

 stratum of rock. According to a subsequent examination, 1 

 tbis substance is very slightly, nav well-nigh inappreciably 

 magnetic, whereas a denser, darker-coloured lava con- 

 taining large crystals, — some of which measure several 

 millimetres in diameter, — and of basaltic appearance, 

 that occurred in several localities, has a perceptible magnetic 

 polarity. The least elerated section of the ridge was found. 

 from observations with the aneroid barometer, to reach 

 an altitude of 217 feet. The ridge terminates on the 

 opposite side of the island, towards the south-eastj in a 



Fig. -2. Ægøen. — Egg Island. 



1 Foretaget af Prof. Sohiotz. 



By Professor Schi.itz. ol CKristiania L"niversity. 



