BAROMETRICAL MEASUREMENT OF IlEUillTS. DELCROS.' 



TACLE IV. (\>KuiiCTiON FOK Decrease of GitAvn-ATiON on a Vkktical Line. 

 rA + » + g+« + I5296> 



« = (• 



6366200 

 Argument =:(A-J-« + ^4-"). 



)XA( + a + + f;). 



Approximate 

 Difference 

 of Level. 



Metres. 

 100 

 200 

 300 

 400 

 500 



600 

 700 

 800 

 900 

 1000 



1100 

 1200 

 1300 

 1400 

 1500 



1600 

 1700 

 1800 

 1900 

 2000 



Correspond. 

 Correction 

 Positive. 



Metres. 

 0.2 

 0.5 

 0.8 

 1.0 

 1.3 



1.6 

 1.8 

 2.1 

 2.4 

 2.7 



2.9 

 3.2 

 3.5 

 3.8 

 4.1 



4.4 

 4.7 

 5.0 

 5.3 

 5.6 



Approximate 

 biffererice 

 of Level. 



Metres. 

 2100 

 2200 

 2300 

 2400 

 2500 



2600 

 2700 

 2800 

 2900 

 3000 



3100 

 3200 

 3300 

 3400 

 3500 



3600 

 3700 

 3800 

 3900 

 4000 



Correspond. 

 Correction 

 Positive. 



Metres. 

 6.0 

 6.3 

 6.6 

 6.9 

 7.3 



7.6 

 7.9 

 8.3 

 8.6 

 8.9 



9.3 



9.6 



10.0 



10.3 



10.7 



11.1 

 11.4 

 11.8 

 12.2 

 12.5 



Approximate 

 Difference 

 of Level. 



Metres. 

 4100 

 4200 

 4300 

 4400 

 4500 



4600 

 4700 

 4800 

 4900 

 5000 



5100 

 5200 

 5300 

 5400 

 5500 



5600 

 5700 

 5800 

 5900 

 6000 



Correspond. 

 Correction 

 Positive. 



Metres. 

 12.9 

 13.3 

 13.7 

 14.1 

 14.5 



14.9 

 15.3 

 15.7 

 16.1 

 16.5 



16.9 

 17.3 

 17.7 

 18.1 

 18.5 



19.0 

 19.4 

 19.8 

 20.3 

 20.7 



Approximate 

 Difference 

 of Level. 



Metres. 

 6100 

 6200 

 6300 

 6400 

 6500 



6600 

 6700 

 6800 

 6900 

 7000 



7100 

 7200 

 7300 

 7400 

 7500 



7600 

 7700 

 7800 

 7900 

 8000 



Correspond 

 Correction 

 Positive. 



Metres. 

 21.1 

 21.6 

 22.0 

 22.5 

 22.9 



23.4 

 23.9 

 24.3 

 24.8 

 25.3 



25.7 

 26.2 

 26.7 

 27.2 



27.7 



28.1 

 28.6 

 29.1 

 29.6 

 30.1 



TABLE V. COEKECTION FOR THE ELEVATION OF THE LOWER STATION ABOVE OcEAN. 

 Argument := Height of Barometer at Lower Station. 



Approximate 

 Difference 

 of Level. 



Metres. 

 1000 

 2000 

 3000 

 4000 

 5000 



6000 

 7000 

 8000 

 9000 



Height of Barometer at Lower Station in Millimetres. 



400 



Metres. 

 1.7 

 3.4 

 5.1 

 6.8 

 8.5 



10.3 

 12.0 

 13.7 

 15.4 



450 



Metres. 

 1.4 

 2.8 

 4.2 

 5.6 

 6.9 



8..S 



9.7 



11.1 



12.5 



500 



Metres. 

 1.1 

 2.2 

 3.3 

 4.4 

 5.5 



6.7 



7.8 



8.9 



10.0 



550 



Metres. 

 0.9 

 1.7 

 2.6 

 3.4 

 4.3 



5.2 

 6.0 

 6.9 



7.7 



^2 



600 



Metres. 

 0.6 

 1.3 

 1.9 

 2.5 

 3.1 



3.8 

 4.4 

 5.0 



5.7 



650 700 



Metres. 

 0.4 

 0.8 

 1.3 

 1.7 

 2.1 



2.5 

 2.9 

 3.4 

 3.8 



Metres. 

 0.2 

 0.4 

 0.7 

 0.9 

 1.1 



1.3 

 1.5 

 1.8 



2.0 



750 



Metres. 

 0.0 

 0.1 

 0.1 

 0.1 

 0.1 



0.2 

 0.2 

 0.2 

 0.3 



