THE HYDROSTATIC PROBLEM FOR THE ATMOSPHERE. 

 Table O (Example 4). 



83 



57. Example of Rapid Derivation of the Main Hydrostatic Results of a 

 Meteorological Ascent. We have given examples above of the derivation hydro- 

 statically of the results of a meteorological ascent in as complete a form as possible. 

 We have shown how to calculate all quantities with pressure and with height as 

 independent variable, and have also taken up problems of a more secondary interest 

 from a meteorological point of view, such as the calculation of the heights at 

 which the different readings of the instruments were taken. 



We shall now show how with the smallest loss of time we may deduce the 

 most important hydrostatic results. This rapid reduction of the data of a mete- 

 orological ascent may soon be of practical importance. It is already proved 

 possible to carry out meteorological ascents every day, in all kinds of weather.* 



Compare, for instance, R. Assmann : Ergebnisse der Arbeiten des K. Preussischen Aeronautischen Observa- 

 toriums bei Lindenberg im Jahre 1905. Braunschweig, 1906. List of ascents during the year 1905, pp. xxvi-xxix. 



