30 smithsonian miscellaneous collections vol. i05 



Pressure. 



A correction of —1.5 mm. was applied to the observed mean 

 pressures to reduce them to the old level. 



FRANKFURT AM MAIN 



Authority. 



1931 to 1933, Beobachtungen an den Stationen II und III Ord- 

 nung; beginning July i, 1935, it became a station of the 

 second order; 1934 to 1937, Deutsches Meteorologisches 

 Jahrbuch; 1938 and 1939, Mitteleuropaischer Witterungs- 

 berichte. 



K5NIGSBERG 



Authority. 



1931 to 1933, Beobachtungen an den Stationen II und III Ord- 

 nung; 1934 and 1935, Deutsches Meteorologisches Jahrbuch, 

 Teil 2; 1936 and 1937, Deutsches Meteorologisches Jahr- 

 buch, Teil I. 



Pressure. 



A correction of +1.5 mm. vi^as added to the observed mean 

 pressures to reduce them from the level of 22.6 m. to the 

 old level of 6.2 m. In 1937 there was a change in height of 

 station from 22.6 m. to 24.5 m., but all data have been re- 

 duced to 6.2 m. In July 1935 the observations were taken at 

 a nearby station of the second order at 7'', 14'', and 21''. 



POTSDAM 



Authority. 



1931 to 1933, Meteorologischen Beobachtungen in Potsdam ; 

 1934 to 1936, Deutsches Meteorologisches Jahrbuch, Teil 4, 

 Heft I ; 1937 to 1939, Mitteleuropaischer Witterungsberichte. 

 Precipitation. 



Rainfall data taken at 7**. 



TRIER 



Authority. 



193 1 to 1933, Beobachtungen an den Stationen II und III Ord- 

 nung; 1934 to 1936, Deutsches Meteorologisches Jahrbuch, 

 Teil 2 ; 1937, Deutsches Meteorologisches Jahrbuch, Teil 3. 



