m. 



m. 



m. 



m. 



m. 



56-5 



51-8 



49-6 



42-65 



28-6 



24*5 



20-5 



18-3 

 31-3 



16-6 



14-1 



32 



31-3 



26-05 



14-5 



BRAVAIS ON LINES OF FORMER SEA-LEVEL IN F1NMARK. 541 



island of Seiland. 6. The environs of Hammerfest. We have 

 then the following series * : — 



m. 

 Elevation of upper line 67 *4 

 Lower line = amount of 



second elevation - 27 7 



Amt. of 1st elevation - 39*7 



The two first series leave no doubt as to the perfect continuity 

 of the lines and the gradual diminution in the amount of elevation. 

 The third series, derived from the others, gives the amount of the 

 first great change of level, and the position of the coast line when 

 the second or lower line was at the actual level of the sea. The 

 first disturbance is thus seen to have been somewhat more con- 

 siderable than the second, and to have extended with less uni- 

 formity along the line of the coast. A considerable difference, 

 indeed, exists between the two last numbers of this derived series, 

 and renders it desirable that we should have further observations 

 witli regard to the coast between Rastabynses and Ryp fjord, and 

 to this subject we shall have occasion to recur. With regard to 

 the absolute amount of each of these changes of level, the outlines 

 which we have here given will require to be modified if we have 

 to intercalate other lines between the two which alone have been 

 hitherto considered. 



§ 2. On other Lines of ancient Level. 



There appear, from various observations along this line of coast, 

 to be two other lines doubtfully traceable besides the two principal 

 ones above described. One of these is intermediate between the 

 two more distinctly marked, and the other is below the lower one. 

 The evidence is not, however, very satisfactory with regard to 

 either of them ; although the former, which we may call the inter- 

 mediate line, is sufficiently probable to be admitted provisionally. 



The first set of observations which the existence of such a line 

 suggested, consists of a dark-coloured band seen on the south- 

 east of Kongshavensfjeld from Bosekop, and having a height of 

 39'3 m ; of a line of erosion between Storvignaes and Krognres 38*5 m 

 high ; and a doubtful line near Talvig of 43- l m , giving a mean of 

 405 m . Near Hammerfest a mean of two or three observations 

 gives 21 m for this same line ; and, according to M. Siljestrom, 

 there is an intermediate terrace opposite the town of Tromsoe at 

 a height of 45 '5 m . 



The intercalation of this intermediate line considerably alters 



* The following table gives these measurements in English feet : — 



ft. ft. ft. ft. ft. ft. 



Upper line -221-4 186 1696 162-3 139-3 92-3 



Lower line - 91-3 80'5 67-3 60 54 46 



Amt. of 1st elevation 130-1 105-5 102 3 1023 85-3 46'3 



VOL. I. 



