262 I KIDIjOl- NANSI.N. M.-N. KI. 



of sliorc-lcfl^-cs cul ill solifl rock as Iktc, il may often be difficult to 

 decide wliere exactiv the acUial Ie\cl is. 



If, liowcxcr, llic di f I'crcnccs he marked on a map, it looks as if there 

 nia\- he cerlain areas wliere tlie hei.^'lUs of the Tapes-line are slightly 

 lower lliaii ilie coniptiled \alues, e. g. between Kvitnes and Glimma, and 

 ill the re_i4ioii of \ iiije. Aiislad, P>jornerå, while especially in the region 

 inside a line Skjervoi, Karlsoi, Reinsvrjll, Movik, and Kalsletta the heights 

 are 0.2 to 1.6 metres higlier tliaii the computed- values, and in one case, 

 Kalsletta, as mucli as 2.8 metres (if this measurement be correct). This 

 may indicate that there lias been some irrcgvilar warping of the land 

 during the first period of upheaval before the Tapes period, by whicli 

 the areas witli too low heights of the Tapes-line were elevated relatively 

 more than tliose with too high values. 



According to what was prc\iously saifl about tlie local variations of 

 the gradient of upliea\al it seems ])robablc tliat there should be such 

 irregularities in the relation l)etwecn the heights of the U|)per limit of 

 sul)mergcnce and those of the Tapes-line. It might rather seem surprising 

 that the departures are not greater. 



Ole F. Gronlie has measured tlie heights of shore-lines and terraces 

 in the Tromso district and further soutli, but unfortunately he only gives 

 [1914, p. 226] the heights of the Tapes-line, and its percentage of the he'ght 

 of the upper shore-line (his ilf-line). If we compute the heights of the 

 upper shore-line from his figures, we obtain, howexer, values which show 

 great irregularit}' in their relation to the height of the Tapes-line, and 

 differ in this respect very strikingly from Helland's values. It seems 

 probal)le that this is due to inaccuracy of some kind, either in Gronlie's 

 measurements or in the figures given in his paper. 



Relation between the Altitudes of Tanner's Shore-lines A and //A 



in Finmark. 



In Finmark Tanner [1906, 1907] has found a great many raised 

 beaches. It was mentioned l)efore that his shore-line le probably corre- 

 sponds to Helland's upper shore-line in the Tromso district and in the 

 Hammerfest — Alten region, while Tanner's line IIA corresponds to the 

 lower shore-line or Tapes-line in the Tromso and Hammerfest region. 



It is not always easy, iiowever, to decide which is his line le am.ong 

 the different shore-lines oi)ser^■efl at the various places. 



On the other hand it has to be considered that, to a large extent, 

 Tanner's shore-lines are not cut in solid rock, but are marked by wave- 

 eroded terraces of loose material, or by wave-built shore-ridges of pebbles 

 and boulders. The one may easily give too low values, and the other 

 too high, as compared with the heights of shore-ledges cut by frost in 



