ENTOMOLOGICAL TRAVELS IN NORWAY. 9 



amongst the over-hanging rocks, sometimes sur rounded with 

 bushes and luxuriant meadows. On the right hand many 

 considerable waterfalls start from the rocks of the always 

 snow^-capped Knudshoe; one, the fall of the Sprenbekken, is 

 usually a fall of spray, only after heavy torrents of rain fuller. 



Beyond Drivstuen, which is distant about a mile and a 

 half from Kongsvold, and which lies considerably lower in 

 the Drivdal, which is here rather broad, one can perceive 

 the northern limits of the Dovrefjeld, although here, as at 

 other places where not bordered by deep valleys, it is con- 

 nected with other mountain ridges. The rock of the mountain 

 is granite, which in many places passes into gneiss or mica- 

 slate, and varies very considerably. 



In respect of vegetation, the foot of the mountain is clothed 

 with firwoods, which, between Dombaas and Fokstuen, 

 attain a height of from 70 to 80 feet ; above 2,000 feet they 

 are more stunted, and at the height of 2,500 feet they dis- 

 appear altogether, giving place to the birch. The latter tree 

 clothes the mountain slopes and valleys (where not prevented 

 by rocks and marshes) to the height of about 4,000 feet. 

 Along with it, as an underwood, occurs the dwarf birch 

 {Betula nana), which also grows exuberantly in the marshes 

 in company w^ith numerous Alpine species of willow, and 

 ascends to the height of 4,500 feet, above which elevation 

 only a very limited Flora occurs on the sterile rocks ; how- 

 ever, it is distinguished by many scarce northern Alpine 

 plants. 



The valleys and ravines often show a very luxuriant vege- 

 tation of ferns, Solidago Virgaureay Aconitum Lycoctonum, 

 var. flore violaceo, Saussurea Alpina, Polemonium cceru- 

 leum, &c. ; in the open places grow Phaca frigida, astra- 

 galina and orohoidesj Alchemilla Aljnna, Conius SueclcOy 



