Geology and Mineralogy. 149 
II. GroLtoGy AND MINERALOGY. 
1. Terraces and ancient Coast lines (“ Strandlinien”) ; by 
Karu PrrrersEn. ublished in Norwegian, at Tromsé, in 
1880, and translated into German by Dr. R. “Lehmann, Zeitsch. f. 
d. gesammt. capes daa ign page liti, 1880.—Prof. Pettersen has 
carried on an ended series of observations of the system of 
terraces in ne ii Norway. Th i 
north to south about 50 English miles and an equal distance from 
east to west , embracing the fiords and sounds in the neighbor- 
hood of Troms’ (lat. 70° N.). A portion ei one of the 
map accompanying his article is reproduced in fig. 1, of the same 
scale as the original. The terrace system includes first the proper 
terraces aterial, sand, gravel and so on, and secondly 
the “strandlinien” or coast lines ss are worn out of the solid 
ee es 
Heutheboth 
fev AL 
ock, Each of them consists of two parts, the more or less level 
upper surface, and the slope which bounds it in front (see ¢, and 
8, 8, gn n fig. 4). A survey of all the results of observation 
show s ‘that these ee oe occur oa almost ~, height from 
greater than 3°8; above the upper limit irs the same may be 
true but the number of lines observed is smalle 
Figure 1 represents these several lines at the “different points on 
