t 459 ] 



Examples. 



Saleve. 



This mountain (lands in the vicinity of Geneva and nearly 

 in latitude 46^ ; its height over a certain point of the plain 

 beiow was accurately tneafured geometrically by Sir George 

 Schuckburg, and found to be-2831,3 feet. He alfo gave three 

 feries of barometrical obfervations to afcertain its height baro- 

 metrically, from the fecond of which feries the indications 

 here given are taken. See Philof Tranf. 1777, p. 530. 



Height of the lower barometer 28,390 inches. 



Temperature of the atmofphere below 7 



J ■ 



These are the neceffary data. The temperature above is part 

 of the objed of invefiigation. 



Invejligation of the^He'igbt of Mercury in the upper Barometer.. 



t°. The temperature of the atmofphere above, by the method 

 given p. 362, was found to be 64,16 and by obfervatlon 64°, 

 therefore I negledl the fradlion as inconfiderable. This muft 

 alfo here be deemed to be the temperature of the mercury in 

 the upper barometer, though by obfervation it was found higher, 



for 



