548 
Proceedings of the Royal Society 
The same two prominent terraces already mentioned are well 
marked along the sides of the Jokuls Fjord. The lower one is 
about 60 feet, the higlier about 152 feet (aneroid measurement) 
above high-water mark, and several others less distinct, occur 
between the higher and the sea. The upper is especially marked. 
Fig. 6. — Map of the Jokuls Fjeld promontory (after Munch). The arrows 
show the direction of the old ice striae. 
often running as a shelf cut out of the rock. This feature was 
noticed along many parts of the Norwegian coast, even (as in 
the Jokuls Fjord) in sheltered places where wave action cannot be 
supposed ever to have been very strong. As the date of these rock- 
terraces probably goes back into the glacial period, it occurred to 
me that they may have been due in large measure to the effects 
of the freezings and thawings along the old ice-foot,” and to the 
rasping and grating of coast ice. Such, too, may have been the 
origin of the higher horizontal rock-terraces of Scotland. 
