BOHUSLAN Til At TNGS. 



119 



become more scarce in the north, though found on the 

 Trondhjem fjord. 



In Bohuslan the tracings are cut in the quartz, which is 



Fig. 892. Rock-tracing representing reindeer, and probably a horse in a boat. Height, 

 5 feet; width, 12J feet. Massleberg, Skee parish, Bohuslan. 



the geological formation of the coast : they are mostly upon 

 slightly inclined rocks, which are generally two or three 

 hundred feet or more above the present level of the sea, 



Fig. 893. Hill showing rock-tracings. 



and which have been polish* ul by the action of the ice. The 

 width of the lines in the same representation varies from one 

 to two inches, and even more ; and their depth is often only 



