of Chamouni, and the Convent of the Grand St, Bernard. 63 



Face of instrument, West. Latitude 45° 55' 14." 

 East. 45 56 33 



Mean or latitude of Le Prieure 45 55 54 



Longitude: E. of Geneva ... 2 m 47 s, 6 = 41' 54" 



Paris 18 4 



Greenwich 27 25 



St. Bernard. (At the Hospice) Aug. 30 d 4 h 28 m ,andl9 h 12 m . 

 Six pairs of equal altitudes of the sun gave for the error 

 of the chronometer at midnight .slow 9 m 50 s, 2. 



Aug. 26. Determination of the latitude by altitudes of Polaris. 



Time by Chron. Face of Instrument. Altitude. Latitude. 



8 h 57 ra 22 s West. 46° 8' 45" 45° 50' 11" 



9 3 56 46 11 37 45 50 21 



9 15 25 East. 46 16 30 45 50 35 



9 19 51 46 17 52 45 50 10 



9 25 10 46 20 45 50 11 



9 28 17 46 21 30 45 50 26 



9 35 59 West. 46 24 7 45 50 



9 43 20 46 25 15 45 48 16 



Mean with face of instrument, W. (excluding the \ " J, - Q/ ♦,„ 

 last value as differing too much from the mean J 



Mean with face East 45 50 20 



Latitude of the Hospice of St. Bernard 45 50 16 



Longitude: E. of Geneva 3 m 41 s '5 = 55' 22" 



Paris 18 58 



Greenwich.. 28 19 



Geneva, Sept. 5 d h . Error of chronometer upon mean 

 time slow 3 m 46 s '0. 



The following are some of the positions previously assigned 

 to these stations. . , 



Prieure ae Chamouni. 

 Latitude. Long. E. of Paris. 



Raymond. Map of the Alps 45°S4' 52" 4° 31' 40" 



Map of the kingdom of Sardinia, "J 



published under the direction >45 58 45 



of Government. Turin, 1819 J 

 Map attached to the new Survey i 



of the Italian engineers. Mi- V45 52 30 4 33 



Ian, 1827 ) 



Map of Savoy, by Chaix, 1832... 45 55 4 32 15 



New determination 45 55 54 4 31 



