lit CORRECTIONS AND ADDITIONS. 



the cement appears a blackish grey indurated sand, 

 composed of argil, fine sand, black oxyd of iron, 

 and is slightly coherent. It is singular that this 

 glutenite is vertical on the E. and horizontal on 

 theW. 



P. 155, Note. The Slack Forest Mountains form another 

 example. 



167, Note. For ava, read lava. 



374, Note. For Voyage, read Journey. 



345, 1. 8. For Marbois, read Marbore. 



VOL. II. 



64. Compare the sites of Miagite in the Appendix. 



100, 1. 2. For resemble to, read resemble. 



221, 1. 2. For Roy. read Roz. that is, the Journ. de Ph. 

 by Roziere. 



267. The following account of the fall of Rosenberg may 

 not be unacceptable. 



" On the 2d September, 1806, at five in the evening, the 

 Knippenouhl Rock, which formed the summit of Mount Ro- 

 senberg, was on a sudden detached from its situation j and at 

 the same time part of the mountain, of several feet thick, on 

 the western side, and about 280 feet thick on the east side, 

 gave way, and fell into the valley which separates the lake of 

 Zug from that of Lauwertz. One part of the mountain fell 

 into the lake of Lauwertz, which caused such an agitation in 

 the waters of the lake, that they overthrew a number of 

 houses, chapels, mills, &c. along the southern shore. Up- 

 wards of one thousand persons were the victims of this cala- 

 mity. A society of thirteen travellers were on the road from 

 Arth to Schwitz : nine, who walked first, perished ; the other 

 four escaped. In this convulsion enormous pieces of rock 

 were carried through the air to prodigious distances. The 

 lake of Lauwertz has lost above a quarter of its extent. That 

 rich plain which was so beautiful, now presents a mountain 

 of near one hundred feet in height, a league and a half in 



