200 PHILOSOPHICAL TRANSACTIONS. [anNO J728'. 



the mountain, and here and there supported with low walls. Having been 

 geometrically measured, it was found of 10110 feet in length, or rather height, 

 its many windings and turnings included. At a small cottage, called Zur 

 Dauben, a poor resting place for weary travellers, being the highest part of the 

 mountain which is passable, the mercury subsided July 1, 1709, to 21^ inches, 

 which gives the height of that place, according to 



Mariotte 974i toises, or 5849 feet. 



And Dr. Scheuchzer 1 002 60 1 2. 



Not far from this cottage, is a small mountainous lake, called the Dauben 

 sea, or the Pigeons lake, encompassed on all sides by high mountains, the 

 tops of which, for their steepness, it would be impossible to reach. At Kan- 

 delstag, the first village in the Frutinger Valley, in the territory of Bern, going 

 up to the Gemmi, the mercury rose on the same day to 24 J- inches, which 

 give, according to 



Mariotte 520^ toises, or 3121 feet. 



Dr. Scheuchzer 534^ 3203. 



And at Miillenen, at the foot of the Gemmi, it stood at 25^-'.,- inches, which 

 answer, according to 



Mariotte to 318^ toises, or 1913 feet. 



Dr. Scheuchzer 327 1962. 



On the other side of the Gemmi, at Leiick, a celebrated place for its mineral 

 waters, the mercury was observed July 2 and July 5, 1709, at 23^ inches, 

 which answers, according to Mariotte, to 58 If toises, or 349O feet, and ac- 

 cording to Dr. Scheuchzer, to 597^ toises, or 3585 feet. So that the cottage 

 Zur Dauben rises above Leiick, according to 



Mariotte 2359 feet. 



Dr. Scheuchzer 2427. 



Above Miillenen, in the Frutinger Valley, according to 



Mariotte 3936 feet. 



Dr. Scheuchzer . 4050. 



And the perpendicular height of the Gemmi, above the level of the sea, 

 considerably exceeds 6000 Paris feet. 



But high above all the mountains of Swisserland rises the Stella, Piz Stail, a 

 steep mountain in the Schamser valley, in Rhoetia, or the Grisons, the height 

 of which was, by Dr. John Scheuchzer, by some observations made in the year 

 1709, determined to 9585 Paris feet, above the level of the sea, according to 

 his own calculation, or 9441 according to Mariotte, and 12196 according to 

 Cassini ; a height, which the Rupicaprae, or Shamoys themselves scarcely ven- 

 ture to ascend. 



