XIX. HEIGHT, IN METRES, OF A COLUMN OF AIR, CORRESPONDING TO A MILLIMETRE 

 IN THE BAROMETER, AT DIFFERENT TEMPERATURES AND ELEVATIONS. 



Temper- 

 ature of 



Air, 

 Centig. 





 2 

 4 

 6 



8 



10 

 12 

 14 

 16 



18 



20 

 22 

 24 



26 



28 



30 

 32 

 34 

 36 



38 



Barometer at the Lower Station, Reading in Centimetres. 



76 



Metres. 

 10.52 

 10.60 

 10.69 

 10.77 

 10.85 



10.94 

 11.02 

 11.11 

 11.19 

 11.27 



11.36 

 11.44 

 11.53 

 11.61 

 11.70 



11.78 



11.86 

 11.95 

 12.03 

 12.12 



75 



Metres. 

 10.66 

 10.74 

 10.83 

 10.91 

 11.00 



11.08 

 11.17 

 11.25 

 11.34 

 11.43 



11.51 

 11.60 

 11.68 

 11.77 

 11.85 



11.94 

 12.02 

 12.11 

 12.19 

 12.28 



67 



Metres. 

 11.93 

 12.03 

 12.13 

 12.22 

 12.32 



12.41 

 12.51 

 12.60 

 12.70 

 12.79 



12.89 

 12.99 

 13,08 

 13.18 

 13.27 



13..S7 

 13.46 

 13..56 

 13.65 

 13.75 



Temper- 

 ature of 



Air, 

 Centig. 





 2 

 4 

 6 



8 



10 

 12 

 14 

 16 

 IS 



20 

 22 

 24 



26 



28 



SO 

 32 

 34 

 36 



Barometer in Centimetres. 



66 



Metres. 

 12.11 

 12.21 

 12.31 

 12.10 

 12.50 



12.60 

 12.69 

 12.79 

 12.89 

 12.98 



13.08 

 13.18 

 13.27 

 13.37 

 13.47 



13.57 

 13.66 

 13.76 

 13.86 



65 



64 



Metres. 

 12.30 

 12.40 

 12.50 

 12.60 

 12.69 



12.79 

 12.89 

 12.99 

 13.09 

 13.19 



13.28 

 13.38 

 13.48 

 13.58 

 13.68 



13.78 

 13.87 

 13.97 

 14.07 



Metres. 

 12.49 

 12.59 

 12.69 

 12.79 

 12.89 



12.99 

 13.09 

 13.19 

 13.29 

 13.39 



13.49 

 13.59 

 13.69 

 13.79 

 13.89 



13.99 

 14.09 

 11.19 

 14.29 



63 



Metres. 

 12.69 

 12.79 

 12.89 

 13.00 

 13.10 



13.20 

 13.30 

 13.40 

 13.50 

 13.61 



13.71 

 13.81 

 13.91 

 14.01 

 14.11 



14.22 

 14.32 

 14.44 

 14.52 



63 



Metres. 

 12.89 

 13.00 

 13.10 

 13.20 

 13.31 



13.41 

 13.51 

 13.62 

 13.72 

 18.82 



13.93 

 14.03 

 14.13 

 14.24 

 14.34 



14.44 

 14.55 

 14.65 

 14.75 



61 



Metres. 

 13.10 

 13.21 

 13.31 

 13.42 

 13.52 



13.63 

 13.73 

 13.84 

 13.94 

 14.05 



14.15 

 14.26 

 14.36 

 14.47 

 14.57 



14.68 

 14.78 

 14.89 

 14.99 



60 



Metres. 

 13.32 

 13.43 

 13.54 

 13.64 

 13.75 



13.86 

 13.96 

 14.07 

 14.18 

 14.28 



14.39 

 14.50 

 14.60 

 14.71 



14.82 



14.92 

 15.03 

 15.14 

 15.24 



59 



Metres. 

 13.55 

 13.66 

 13.77 

 13.88 

 13.98 



14.09 

 14.20 

 14.31 

 14.42 

 14.53 



14.63 

 14.74 

 14.85 

 14.96 

 15.07 



15.18 

 15.28 

 15.39 

 15.50 



D 



91 



