SCIENTIFIC BALLOON ASCENSIONS VON BEZOLD 



325 



For the present one must be satisfied with theoretical considera- 

 tions concerning this aspect of the question since it will certainly 



be a long time before obser- 

 vations are at hand from 

 the oceans and the Tropics 

 similar to those for Central 

 Europe that are presented 

 by the ascensions described 

 in the present publication. 



At any rate, however, 

 through these ascensions 

 the theoretical foundations 

 have acquired such strength 

 that we may safely venture 

 to build further thereon un- 

 til the conclusions drawn 

 therefrom once again find 

 confirmation, just as now 

 FIG ' 5I the theoretical work that 



has been prosecuted for years is to a certain degree confirmed by 

 the labors whose results are recorded in this work. 



40" -30° -20° -10° 



/0° 



20° 3C 



