med Sikkerhed, begge Barometre, det ene umiddelbart efter 
det andet. 
ninger, der kunde benyttes til at beregne en Formel for 
Aneroidbarometrets Correction til sand Barometerhøjde. 
Er: N den sande Barometerhgjde ved Havfladen. 
A Aflæsningen af Viseren paa Aneroidbarometret. 
JP r , Thermometret paa do. 
t Antallet af Dage, forløbne fra 15de Juni. 
a, b, € og d Constanter, 
saa setter jeg 
N= A+ a+bT+ec(760 — A)+ dt 
og bestemmer de sandsynligste Verdier af Coefficienterne 
a, b, ¢ og d efter de 49 Ligninger, som Sammenligningerne 
give, ved de mindste Kvadraters Methode. 
N er saaledes Aflæsningen af Søbarometer Adie No. 
1493, reduceret til 0°, og formindsket med 0.””5. 
Den følgende Tabel indeholder Resultaterne af de 49 
Sammenligninger, samt de efter den fundne Formel bereg- 
nede Verdier af N— A, og Forskjellen mellem den ob- 
serverede og beregnede Værdi af denne Størrelse. 
Paa denne Maade erholdt jeg 49 Sammenlig- 
34 
with accuracy both instruments in immediate succession. 
In this manner I succceded in obtaining 
which could be applied for computing a 
correction of the Aneroid barometer to 
pressure. 
49 comparisons, 
formula for the 
true barometric 
If N be the true barometric pressure at the sea-level, 
A the reading of the hand of the Aneroid barometer, 
Maes » the thermometer of the Aneroid, 
t the number of days from the 15th of June, 
a, b, c, and d constants, 
I put 
N=A+ a +5 T +- c(160— A) + dt, 
and determine the most probable values of the coefficients 
a, b, c, and d from the 49 equations given by the compari- 
sons, by the method of the least squares. 
N is thus the reading of the marine barometer Adie 
No. 1493, reduced to O° and diminished with 0.””5, 
The following Table contains the results of the 49 
comparisons, as also the values of N— A computed from 
the aforesaid formula, together with the difference between 
the observed and the computed value of that magnitude. 
