THESES. JULIUS PUNOUR. 



7. With regard to the 6 stations mentioned first, as well as the 

 geographical coordinates, international regulations are necessary. 



8. Only simultaneous phenological and meteorological data are 

 to be employed for comparative treatment. • 



JULIUS PUNGUR. 



According to the present state of the work based upon the vast 

 observations of the autumnal passage of Hirundo rustica, in 1898, 

 (2345 reports), the results are as follows: 



1. In contrast to the spring-migration the autumnal migration leads 

 from North to South; its course is less marked than in spring. 



2. Corresponding with the successive populating of a region in the 

 spring migration, a successive depopulation takes place in autumn. 



3. The more or less delaying or accelerating finds its most decided 

 expression in the regions. (Cf. ant. p. 25. Note.) 



4. The real departure „en masse" lasted from 4th August to the 

 first of October, i. e. 59 days. 



5. From the beginning of the earliest departure August 4th — 

 till the last noticed Swallow — November 4th — 93 days elapsed. 



(Vide: „Aquila" XI. 1904.). 



30 las 



