m 



Charles Maclaren, Esq.. on the 



point in the crest of the ridge, which rises elsewhere to an elevation 

 of nearly 3000 feet. Boulders of crystalline rock were thinly 

 strewed all along the valleys of Sarnen and Lungern, up to the 

 summit of the Pass. Having crossed it, we found them stili more 

 numerous on the south side of the crest, and of larger size (some, 

 for instance, from 10 to 20 feet in length, and generally angular), 

 affording evidence that the stream of blocks proceeded from south 

 to north. The water, ice, or whatever carried the blocks and poured 

 them into the valley of Lungern, must therefore have filled the val- 

 ley of Hash to a height little short of 2000 feet. 



On the opposite side of the valley of Hash (at k in the map), a 

 large stream, coming from the south-west, pours over the limestone 

 ridge, and constitutes the celebrated waterfall of the Reichenbach. 

 Here also, on the verge of the precipice, the gneiss and granite 

 blocks abound, d msgnuJ 



boow riliw be-xadteoi baa ( iimrl pa aniainuom erlT .y^iusetf SfidTg 

 >ybj;rg baa 89voi§ ni bnuodjs ieidfiviIo9b lierb olidw ,8*imnnja liodi 

 ten baiteviJiuD w9t a o'ifi nwoh lewoi bittt .flsajijg iaedaml 9ffo 



.aJyLfido e ab 

 9^9 odJ bi 



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b9§«eni9 



Tidi&i^nliooi ni 



oM baa igiJI 9di 1o 

 /IbI od* 9vodfi teo'l 01 



t9W 3BW <8JJ 



tuft .ah 





baa <89gfilliv 



no ataoi 



i <08£& gniah 



l&b odT ,teo\ 



•giau'iQ eAi lo 



ua 9dj b9d0fi91 



^eilvsv lulii 



w orfo moil 



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edJ bat 



The above figure is a section across the valley of Hash, 

 the limestone mountains on the two sides of the valley ; R, the crest 

 of the Brunig Pass ; b, blocks on the north side of the Pass, form- 

 ing part of a straggling line which extends to the lake of the Four 

 Cantons, fifteen miles distant ; 6', Blocks on the south side of the 

 Pass, which are more numerous and rflore closely grouped ; k, the 

 opposite or south wall of the valley, at the point where the channel 

 of the Reichenbach stream crosses it ; b", numerous boulders of crys- 

 talline rock, lying on the declivity up to the very brow. My impres- 

 sion is that the height of the rocks at k is about the same with those 

 at R, but I have no ascertained measurement to rely on. While R, 

 however, is the top of a narrow ridge, k is the lower end of a decli- 

 vity which extends south-west five miles to the Scheideck Pass (p in 

 the map), where it attains an elevation of 4400 feet above the val- 

 ley of Hasli at Meyringen. Now, when I state that over all the 

 live miles primary boulders occur, it must not be concluded that they 

 came from the upper part of the valley of Hash. They travelled by 

 a different route. The two glaciers of Grindelwald giving birth to 

 the two rivulets at W in the map, and the glacier of Rosenlaui at 

 N, have their termination in the limestone ridge W N, but that 

 ridge is narrow, and these glaciers have their origin in an extensive 



