,148 APPENDIX. 



Observations for determining the height of a Mountain 

 in Latitude 79° 44'; by the Barometer, and Geome- 

 trical Meafurement. 



.Obfervations taken by the Barometer, by Dr. Irving. 



y% UGUST the eighteenth, the day remarkably 

 clear : 

 At 6*" in the morning, the barometer by the fea !„£!,„. 



llde flood at ----- 30,040 

 The thermometer 50* 

 On the fummit of the mountain, about an hour 



and three quarters later than the firft obfer- 



vation below, - - - ^ - 28,266 

 Thermometer 42° 



About an hour later at the fame place - - 28,258 

 Thermometer 42° 

 By the fea fide, where the firft obfervation was 



made, and about three hours later - - 30,032 

 Thermometer 44** 



Height of the mountain calculated by M. De Luc from 

 the firft obfervation - - - 1585 feet 



From the fecond obfervation - - J 5 92 



Mean - - - - - 1588 1 feet 



A Means 



